Hi, On Mon, 4 Jan 2016 17:47:00 -0500 Benjamin Deering <[email protected]> wrote:
> I disagree with the call for an ultra low-power display. My current > device can get 5-7 days of moderate usage on a charge with a 5.5" > 1920x1080 screen. Since this new device would probably already be > thicker than mass produced phones, just plan to put a huge battery in > it (huge battery will help with compiling all that source from portage > too ;-)). A secondary e-ink display to give notifications would be > cool though. Perhaps having e-ink over a few capacitative buttons > would be good for those who don't want the 3 standard Android buttons. > How long can you have your display backlight that bright that you can read it in sunlight? Of course if you turn off your display often, you will get that long time. If the display works without backlight (if it is not a transmissive display), you do not need that agressive powersaving and can show every kind of information. For some use cases that might be helpful, e.g. if I use that for navigation purposes on my bike. If I could choose between a 480x640 pixel display which does not require backlight in sunlight and a 1920x1080 pixel display which requires backlight, I would choose the 480x640 display. Bigger batteries need also more power to charge. > To be hacker friendly, consider exposing an internal usb > port and the I2C bus on some sort of standard sockets. Soldering > to the testpoints on GTA02 and GTA04 is tricky. Really, if I wanted > to add sensors to A phone, I would build an external BT-LE device > even if I did have an easy way to tap the I2C bus. > > I am not concerned about seeing the PCB layout. Even if it is > released, we are still trusting that it matches the device, just like > we are trusting that the schematics match the device. Much of the > talk about this (and previous devices) has focused on security, but > I wonder if that is a real concern. Prior to replicant, how many of > us had an unencrypted phone that loaded the GUI as root with no > password? I'm not aware of anyone implementing a trusted boot chain > for GTA0*. > I would like to see the schematics, not the layout, just the way it is done for the GTA04. The reason is that I want to understand how it behaves. I think security is a concern. At least even on those all-root guis, you are not talking to the network with everything. If there would be gpe-dm ready to install, I would simply install that. On all my computers I am using some kind of hd encryption so if someone steals the device he/she will not have the data but on the gta04 it is not that easy to just use cryptsetup. Somehow the password has to be entered. Personally I am wondering about all those everything-is-root things. I think there a different priorities here amoung people: Priority one is: Avoiding any security that prevents the user from using his/her device Priority two is: Not having programs talking all the time to everything in the internet. On OHSW 2013, there were also some security talks. But I am thinking a lot about how I can have more security. Regards, Andreas
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