For slightly different approach I use Pilot My-Cast on my mobile phone
(not a cell phone as mentioned in previous discussions).

https://secure.my-cast.com/pilot.jsp

It works very well in both the glider and the C-172 and I've found it
routinely useful in keeping up to speed on changing weather, dodging
scattered precip, etc. The Sat images are particulary good for an in-
flight snapshot of conditions.

Bob