Yeah, multitasking is going to be an issue, I think. I gotta figure that the software and hardware are capable, or soon will be. Steve thinks ahead...
Dunno whether Palm will make one last gasp and try to get WebOS on a similar tablet soon, but that might be an opening. They tried once with the Foleo, but couldn't build a critical mass - http://en.wikipedia.org/wiki/Palm_Foleo (and it didn't run WebOS). It's probably too late unless they find some magic niche that Steve didn't.
Interesting times.
Cheers,
Scott.