It's about time. Apple has long known they weren't doing well in enterprise alone, so they needed to have a partnership somewhere. However, this maybe took the death of Jobs to make it happen with IBM.
it is comical when i see people trying their best to make ipads do serious work....buying a case, a kb attached, making it function like a laptop. all they had to do was buy a laptop.
I have two personal laptops (Windows and Mac OS X). I also have an iPad with a keyboard (and a Nexus 7).
On business trips when I need to do real work, I usually take my laptop, usually my Mac. One pure fun trips for short periods when I want to travel light I may take none of the above and just use my iPhone. For the in between stuff, or for some conferences where I'm not presenting, I sometimes will take the iPad, +/- the keyboard depending on the situation.
IOW, when I just need iPad like use but will be typing a lot on it, I take the iPad with keyboard. Works fine. The main issue is that the keyboard cases aren't full-sized keyboards. So it's like typing on a netbook.
However, if I know I'll need to use something like MS Office, I take my laptop. Mind you, I've never tried MS Office for iPad yet. I'm curious how well that works.