I've now gotten the Android FrSky Dashboard to a state where i found it good enough to go onto the Android market.
It supports monitoring the Analog channels as well as RSSI. Setting units and conversion factors on these channels, and having the values read to you as you are flying.
It also supports setting the internal FrSky alarms.
It uses bluetooth, so it needs a rs232<->bluetooth bridge attached to the Tx module. (Regarding bluetooth causing interference with the radio transmission, I use it with two planes and a helicopter, and have never seen it affect the radio transmission at all..)
Market: https://market.android.com/details?id=b ... .frskydash
Webpage: http://projects.onomato.biz/projects/android-dash