Hi,

I respectively disagree.  I think we blinks need to look at all  
solutions, mainstream and AT, to select the one that works best for  
us.  Mainstream is nearly always less expensive (economies of scale  
and such) but, sometimes, At provides a more robust solution that will  
work, when compared to a off-the-shelf product,  especially well in  
situations that a blind person may need that rarely apply to a  
customer who does not self identify as having a disability.

Thus, one major factor in choosing a solution is (using the Navigon  
example) whether the $70 solution provides the consumer with the  
features and usability they need or want.

I've been pounding on Navigon the last couple of days, putting it into  
situations that it may not have been designed to handle.  These are  
situations that Mobile Geo performs well in.  My goal is to find the  
boundary conditions and limitations of Navigon so I can write up  
results for a blog entry.

One thing that Navigon gets a whole lot better than virtually all  
other solutions I've tried is its accuracy at slow (pedestrian)  
speeds.  While this may be a function of the superior iPhone Location  
Services, Navigon does an awesome job of announcing with about 1 or 2  
meters of the actual location and it does it with the built in GPS and  
not a specialized external one from a third party.

My biggest complaint with Navigon is that it does a really poor job  
when one goes "off road."  There is a church in Harvard Square where I  
get together with some friends daily.  To get there, I must use a  
pedestrian bridge lest I choose to commit vehicular suicide.  While on  
this bridge yesterday, Navigon announced what seemed like random  
instructions including, "take a sharp right and then a left," "make a  
U-Turn and bear left and other instructions that were senseless in  
that situation.  Once I got back onto a more traditional sidewalk that  
runs alongside a street, Navigon returned to its relatively good  
performance and excellent accuracy.

If you go to the blog (www.blindconfidential.blogspot.com) you can  
search on GPS for other articles I've written about it.  I'm a fairly  
harsh critic of nearly all products that we blinks need or want to use  
as I always want to be on the side of raising the floor rather than  
feeling satisfied with the crumbs from the table.  With Navigon, it is  
a whole lot better than most that I've tried but needs a lot more work  
to provide an excellent pedestrian solution like that in Mobile GEO  
and other "blind guy ghetto" products.

Happy Hacking,
cdh
  .
On Aug 12, 2009, at 5:12 AM, Krister Ekstrom wrote:

>
> Ok, Il moderatore, i know this is off-topic somewhat but i as they say
> in online business promoting mails, have to get it out of my chest
> before i explode! I think it's a bit unfair to compare standard gps
> solutions with those made strictly for blind folks and if Navigon as a
> standard gps solution makes a very good job of helping us around the
> place, it's great! What really would've been great would be if someone
> could do a podcast of a navigon session so that one may here it in
> action, rather like people have done with Wayfinder access and Mobile
> geo.
> /Krister
>
> 11 aug 2009 kl. 14.10 skrev Chris G:
>
>>
>> Hi,
>> FYI Humanware Trekker is not using the Sendero SDK.
>>
>> Chris
>>
>>
>>
>> On Tue, 11 Aug 2009 10:01:26 +0100
>> william lomas <[email protected]> wrote:
>>
>>>
>>> what will the update in december contain for navigon?
>>>
>>> On 10 Aug 2009, at 18:50, Chris Hofstader wrote:
>>>
>>>>
>>>> EI don't do podcasts.  I will write some blog entries on this stuff
>>>> soon (www.blindconfidential.blogspot.com).
>>>>
>>>> Of those available to blinks, Wayfinder is the one I know the least
>>>> about as I only used it for a month or so about a year ago.  Almost
>>>> all of the players in the AT biz are using the same Sendero engine.
>>>> So, Humanware, Nuance, Freedom Scientific, Code Factory are all
>>>> about
>>>> the same underneath but have different UI that one can pick from.
>>>>
>>>> Just based on my minimal experience with Navigon, though, I would
>>>> suggest you stick with Wayfinder/Access until they put out an  
>>>> update
>>>> expected in December.  Navigon is fine if you don't already have
>>>> something but I wouldn't scrap your current solution quite yet.
>>>>
>>>> These opinions are mine and mine alone and are the result of  
>>>> messing
>>>> around with Navigon for less than two days and I've been using
>>>> Mobile
>>>> Geo very frequently since it came out and it is my favorite but  
>>>> that
>>>> is likely because it is the one with which I'm most familiar.
>>>>
>>>> cdh
>>>> On Aug 10, 2009, at 9:40 AM, william lomas wrote:
>>>>
>>>>>
>>>>> can you do a podcast on navigon so  ican hear it? at present i  
>>>>> am a
>>>>> wayfinder user and want to "hear" how it compares
>>>>>
>>>>> On 10 Aug 2009, at 14:09, Chris Hofstader wrote:
>>>>>
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> While I have had and enjoyed my iPhone for about a month and a
>>>>>> half, I
>>>>>> hadn't, before yesterday, needed to switch between running tasks.
>>>>>> Specifically, I was following directions to our local YWCA using
>>>>>> Navigon yesterday.  I received a phone call and, after hanging
>>>>>> up, I
>>>>>> couldn't figure out how to get back to Navigon to look at some
>>>>>> things.  Navigon continued giving me directions but I could not
>>>>>> get
>>>>>> back to its interface where VoiceOver reads the street names and
>>>>>> such.
>>>>>>
>>>>>> I looked in the iPhone manual and searched on "task switching"  
>>>>>> and
>>>>>> "background task" using VO's search facility as well as the one  
>>>>>> in
>>>>>> Preview and didn't find anything.  I can't believe that this  
>>>>>> would
>>>>>> be
>>>>>> too difficult but I can't find it in the manual given the search
>>>>>> criteria I can think up.
>>>>>>
>>>>>> Any help will be appreciated.  I'm going back into the manual to
>>>>>> see
>>>>>> what I might be able to find.
>>>>>>
>>>>>> Happy Hacking,
>>>>>> cdh
>>>>>>
>>>>>>>
>>>>>
>>>>>
>>>>>>
>>>>
>>>>
>>>>>
>>>
>>>
>>>
>>
>> -- 
>> Chris G <[email protected]>
>>
>>
>>>
>
>
> >


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