First right after the announcements
PlayStation Vita: Wow!
Nintendo Wii U: WTH???
After getting to try them out
PlayStation Vita: Meh. The graphics are really nice, but the controls are a bit weird, and most of the games so far look like things you'd be better off playing on your PS3.
Nintendo Wii U: Wow! It actually feels pretty good, the tech demos are a lot of fun, and the HD video looks great!
It's obviously still very early to make any kind of serious judgments, but i'm feeling a _little_ less apprehensive about Nintendo's strategy now. Although there is still some risk related to when exactly Sony and Microsoft can get their new consoles out.