The books I have on palm programming say you need hardware attached to the
palm to 
allow for TCP/IP communications, but nothing about using TCP/IP over IR.. I
know from programming 
IR on the palms, its very difficult to establish communications with any
device, particularly because 
the only high level libraries in the Palms are is support of Obex, which is
like HTTP, its 
one-shot not a persistent connection.. Anything else requires custom
programming to talk tot eh low level IR, 
so you would need libraries on the Handspring that support  connection to
the Nokia Modem directly, 
but even with this its most likely the software would only support its own
uses of the Nokia and couldn't 
be used by other applications on the Palm, because the library would have
to remain resident to 
handle the synchronizing of communications between the devices.. 
  Also note that the line of sight for infared is about 15 degrees, so your
nokia 
modem would have to be nearly right next to the Handspring.. It takes a lot
of tries to re-sync the communications 
once they drop.. I would suggest just getting the palm cellphone attachment
or a hardware modem, 
preferably not the Handspring's own modems (it requires use of a
communications portal company which charges a lot of 
money for access). I also would probably suggest dropping the Handspring
for a Palm since 
many Handsprings, if not all, support a optimized older version of the
PalmOS that didn't 
support many things like bluetooth and Java. Palm's are roughly equivalent
to 286's (I mean they must be 
multiprogrammed, multi-tasking is not possible.. Maybe I should compare
them to the old MacOS)  and the Ipaq's are 
like Pentiums.. I think the reason Hansprings/Palm's are still so popular
is the ease of use,  but 
the underlying technology is not remarkable, so don't expect wonders.. The
reason the manufacturers 
are hanging onto it with much interest and faked-marketing-hyped-excitement
is its easy to use, cheap to make, 
and depends heaavily on proprietary hardware attachments, its a perfect
market for non-interoperable monopolized-prone gadgets.. 
Whereas Windows is a fairly non-interoperable system running usually on
very interoperable hardware.. Yeah get and Ipaq and 
put linux on it, but then we'd still have to wait around until someone
developed a linux based embedded os 
for the Nokia modem.. I guess you are stuck.. Unless of course Nokia and
Handspring have a special 
technology which was designed to use these features, and it may cost you
about as much as a cellphone 
attachement for your handspring.  

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