The solio looks cool i especially like the lithium aspect...

This would mean you could just let the thing charge up and tap into that charge at will (rather than charging n800 in 'real-time' waiting for sun).

Why on earth would you be looking for another solution if you have cables.... just remember the thing!! It looks like it can be charged off of wall power? If i were you i would either charge it up fully at night off of ac power (just using it mostly at battery pack)... or buy a cheap n800 ac charger to leave at (work?)

Is there some other aspect about the solio about it that is not good?