doesnt the PDA have a landscape option independant of the program running? if it does, just make sure its used before gauges are shown, as im not sure theyd adjust afterwards.
active tests are in the feature requests page on the site, and will most likely form v1.4 (there'll be another 1.3.x to include things before it like the ability to reconnect after u turn car back on)
colour choices are just all standard ones...obviously depending on screen colour depth, many of them will be the same colour on a PDA (wheres on desktop they will be different). may be useful to just have a colour circle thing rather than named colours, but theres many other important features to go in first
blazt are looking into making a cable up for ipaq's that will do the serial connection + charging:
http://www.blazt.biz/forum/viewtopic.php?t=55
