Thanks everyone for trying it and giving your feedback. I'll try and answer your questions as best I can.
VFR Transit, the software will probably cost money at some point in the future but for the moment it's free, while it's "unfinished".
The software will only run on Windows Mobile devices because those devices are the only ones I know about writing software for.
englishal, I consider both Henstridge and Compton Abbas to be "home" airfields, though I don't keep a plane at either. Are you local?
stickandrudderman, the live weather is METAR and TAF data, neither of which is suitable to be applied as wind for route calculations, hence the box at the top for you to enter such data (from the met 215). Unfortunately I don't yet have a feed of enroute wind information at altitude. If anyone knows of one, do let me know!
liam548, as you plot a route the TAF and METAR data for airfields near the route will appear on the graphical route depiction at the bottom. You can also switch to the TAF and METAR windows at the bottom for a more detailed view. Additionally you can right-click any airfield and request weather data for it, but of course not all provide it.
Black Prince, it is not currently possible to plan a route altitude at less than what the software considers "safe". If people think this should be overridable, then I'll make it overridable. I know nobody likes software to boss them around
Gertrude, thanks for reporting that error, I'll take a look into it. It would help to know what station produced the TAF that caused it to choke, if you can remember (or what your route was), but I'll ensure that in the next version you'll see a much friendlier response than that.
Has anyone tried the USA data?