According to a tip that MacRumors has received, RadioShack will begin offering the iPad 2 tomorrow. The indication is that all 500 nationwide retail stores will carry the tablet.
I have called 2 local RadioShack stores, and they have both confirmed it to be true, however it is not a direct point of sale purchase, but rather an order from their warehouse which will take 4 working days to arrive at your doorstep.
Via 9to5Mac