From Nilay Patel at The Verge

"And while Windows 8 has a long way to go before it can challenge the iPad, it feels almost inevitable that Microsoft will quickly succeed where Android tablets have thus far failed — especially because Microsoft is aggressively courting developers to write apps for its new Metro interface.

Perhaps more importantly, Google doesn't seem to feel any pressure to increase the quality or quantity of Android tablet apps, which have lagged far behind their iPad counterparts. Rubin told reporters this week that he "can't force someone to write a tablet app," but that he's hopeful developers "put in the muscle" to make their Android phone apps work better on larger screens. Until Google articulates a clear strategy to make Android relevant on tablets, that doesn't seem likely to happen."

It is hard to believe that Google isn't being more determined in recruiting quality developers.  Surely they recognize that much of the success of the iPhone, iPad, not to mention Windows, can be carried on the back of quality apps.  Of course, if your entire financial model is based on driving ad revenue, they just may not see the value.