I've only played with a Surface RT at the MS Store. Really impressive, and I'm really jealous of my friends who work at MS in Redmond who got Surfaces. If I had the disposable cash, I think I'd be more inclined to get a Pro. I still use enough desktop-based apps for it to be worth it, plus I'd love to use it for development (my existing laptop can't run Hyper-V and so I'm pretty crippled with regards to developing my million-dollar-idea Phone 8 app). The only thing that I'd be concerned with is the battery. I assume the Pro is going to have a shorter battery life than the RT, just considering its broader capabilities, but I haven't seen any definitive reviews yet.
But, it's hard to justify the cash for a new machine either way right now.
The switch to Skype has me a little concerned, to be honest. The desktop clients ("Metro" and desktop) are fine, if a little peculiar (my former Messenger friends still show up with a "1:" or "2:" prefix). But what will happen to devices where Messenger was integrated? I'm thinking of my Windows Phone and my Xbox. Will they survive the transition just as seamlessly? (There's a Skype app for WP and I think one for Xbox, but they're not yet integrated into the standard "messaging" section for either one's OS.)