Come on -

Backblaze: Huh?

Bing: Has Microsoft really done anything game-changing lately?

Chrome OS: Super in theory - but has anyone really got it running in high-level use? And where are its apps? An OS with no apps is boring.

Google Wave: Um, yeah. There’s the biggest disappointment of the decade.

PuSH: Huh?

Silverlight: Been around forever. It’s Microsoft’s way of saying, “We like what y’all do, so we’ll do it to, but our way." Hasn’t the whole proprietary thing been debunked?

So I vote for NONE of these.