It would greatly help the industry if the 2 middle ground consoles decided to actually pick a direction and move rather than just sit around and have problems with everything. Developing an all-in-one controller and programming language is a fruitless effort, as gaming should be all about radical differences and niche appeals. The average gamer isn't going to play games of every genre so why do we feel compelled to make gamers buy systems that fit the "jack of all trades, master of none" archetype and then make them buy another one to appease the arbitrary requirement of hardware-equivalent-yet-incompatible coding?
The Wii may be underpowered, already obsolete and loaded with 3rd party shovelware, but it specialized in a field and went with it, and that made it the dominant console of the generation. People wanted an easy to access machine that ran simple games and offered a new way to experience the medium, and that's what it did. The 360 and PS3 only have exclusives because of arbitrary limitations enacted by corporations, and that is the main thing keeping the hobby from growing, absurd entry fees caused by arbitrary software limitations.
Just look back when SEGA and Nintendo were fighting it out. The SNES did some things well and some things not so well. Platformers, top-down shooters and JRPGs excelled, whereas things like FPS's, WRPG's, RTS's, sports games, flight sims, realistic brawlers and multiplayer games rarely worked well, but if you were only interested in those, then the SNES just wasn't for you, the other systems had you covered. Every genre had a console of preference that matched its needs. What about now?
The 360 and PS3 seem content to try to appeal to the the motion control market, the FPS market, the W and JRPG markets, the RTS market, the MMO market, the multiplayer market, the racing markets, the sports market, the hack n slash market and many others, and they simply cannot feasibly do it.
What we end up with is joysticks that are sluggish for shooters, motion controllers that are more gimmick than innovative, RPGs based on hard to navigate menus, controls too slow for RTS, online capability too finicky and restrictive for solid multiplayer, one or two button hack n slashers, simplified sports titles and overall a strong feeling of uniformity. The industry needs to spread out and divide up the ground so we can stop tripping over each other.