Lots of devs working on Revo software, from what I see, really seem to be amazed. Remember Jon Romero's (God I butchered that name) comments? He's not the only one saying things like that.
Also, if the DS is any indication, Devs will flood there way to Revo.
Remember Iwata's consistant comparing of DS and Revo. DS has touch screen, 2 screens, mic, ect... but it can still play games as such, say, Devil May Cry. Only this time, it can play it with the addition (note that word) of touch screen, 2 screens, mic, ect.
It's kind of funny, actually, the Revo is like the DS in many ways (only I can almost assure you it won't be labled a "gimmick", "Virtual Boy 2", ect.). When people first heard of DS, EVERYONE was freaking out! Even though they had never seen the DS. That seems to be the case with Revo (only not so extreme).