Siri not working correctly is a server-side error; all of it other than voice-to-text is going through Apple's servers to find its information. It'll work correctly in a few days or so.
Virtual analog sticks are terrible, yes, and I'd never bother with a game that uses them unless they use them REALLY well. Stick to games that use the strengths of the phone.
As for apps: Hipstamatic, Instagram, Facebook, Tweetbot, Alien Blue, Facebook Mssenger, Dragon Go, Words with Friends, Comiczeal, Find My iPhone, IMDb, HBO Go, Incredibooth, Flixster, Netflix, RunPee, Bump, Beejive IM, Foursquare, GroupMe, LinkedIn, Groupon, GetGlue, IntoNow, Pandora, TuneIn Radio, Spotify, forkly, Starbucks, Momento, Pulse News, just to name a few.