That's tough to say. Without a BB you lose out on a LOT of functionality. On the other hand the browser really is that good.
It would depend on how good the competition is; particularly that new samsung galaxy tablet. In all honesty, though, if it weren't for my bb then i probably would've waited for the right android tablet.
+1 on the playbook browser, best ive seen on a tablet.. miles ahead of the ipad in this regard. the screen is smaller, so to each its own but i actually prefer the smaller size.
I do use a blackberry, and as such im very happy with the playbook the way it is, but the functionality you are speaking of should be available in the software update comming out later this week.
I wouldn't mind outputting PowerPoints to a projector occasionally. I have a wireless USB to DVI device that I can use for this but I'm not sure how easy that would be to use in that way with Android OS or any other OS for tablets.
the playbook has hdmi out for presentations.
For me I would stay with a laptop for business, tablet are for personal use in my view. For me when I travel I take both my laptop and IPAD, laptop for work and IPAD for personal email and web browsing. I have ordered a playbook from RIM as I use a BB for work and Iphone as my personal. With the Playbook I can read and respond to work emails. While I can output from the playbook for presentation I would not be able to control the presentation. Recomend stick with a laptop how about the HP2740P?
the playbooks presentation mode alows you to not only output and control presentations, you can choose between mirror mode and presentation mode which allows you to multitask, bring up other parts of your presentation or notes while the presentation continues on screen..