I just wanted to give you solar computing fans a quick heads-up on a new solution that you should consider. The Viliv X70 EX.
I’ve been testing it for the last week and as a standalone UMPC its a really flexible solution. SSD and 3G options, high quality build and very long battery life. In tests, I’ve been getting 5-6hrs battery life and seeing great productivity levels using either the on-screen keyboard or a USB keyboard and mouse. The best thing is that the car-kit includes an adaptor plug for 12v => 9.5 but the input voltage can rise to 24v making it perfect for attaching direct to a 24w or even 12W solar panel. One issue however is the gloss finish on the screen. Viliv are producing a filter though so this should help a lot. I will get one and test it soon.
Initial plug-in test worked but I need to work-out the minimum sun power level needed and the full-sun charging time.
Stay tuned for more test results. In the meantime, check out my full review at UMPCPortal.