I have KOBO waiting on my desk, maybe it is soon time to give it
a try. 5 inch size is better than 6 inch NOOK. But at the moment
I cannot connect KOBO with my flight instruments via IOIO and
Soartronic UART interface using a simple USB cable. (we have 4
club gliders with that setup).

For me the IOIO card connectivity is an important detail. XCSoar
is wonderful device when connected with FLARM for anti-
collision, and variometer for vario, IAS, and Baro (and bug,
ballast and MC settings). Final glide accuracy becomes much
better! And when you have all loggers connected with XCSoar,
declaration and logger file download are very easy.

What I do is, that right after landing I initiate the logger file
download from FLARM to XCSoar/NOOK. After I have pushed the
gilder to hangar, download is ready. Then I either use build in
web browser and WiFi, or USB connection to PC to download IGC
file into OLC. (OLC also accepts XCSoar log files if you glider
does not have engine).

Since KOBO starts to XCSoar directly, it will open new
possibilities for club glider setups!

http://max.kellermann.name/projects/xcsoar/kobo.html

The Kobo is faster than the Nook, and comes without Android
crapware. You
c=
an boot right into XCSoar, and booting (from power off) takes
just two
seco=
nds.