I know this is still out a ways, but would you consider supporting both WSI and XM weather. I know in the hand-held world XM is most common but WSI is very common on the panel mounted devices and many of us use WSI.
When we get closet to implementing that feature, we'll be investigating all of the currently available data sources and seeing how many we can support. ADS-B, XM, WSI are all possibilities, but there are no promises at this point.
Cost of subscriptions are a huge issue for us- we're going to be doing our best to get an affordable receiver and subscription for our customers.