Well what do we have here? It looks like Sprint is getting very close to announcing the first 4G tablet made by HTC. They are calling it the EVO View 4G.
If you would like to sign up to receive updates by mail you are free to do so here. So far rumored specs are to have a 1.5 GHz Processor and a 7" screen. Maybe this one will be the droid you are looking for.