However when I use keyboard I tend to combine pointing stick and track pad to move the mouse. It works very natural both ways and I really enjoy interacting with a computer in this manner.
I prefer not to write anything unless my handwriting is recognized. I like OneNote but I use it mostly for drawing schemes, diagrams, etc. while keeping audio recording on. It's not ideal but still has some valid use cases. So far I used it three times and each next time I end up having better notes.
As for battery I actually considered that, too. My other laptop is a pretty old 15" Dell which after 4 years can stay alive for about an hour and a half only. The power adapter was a huge brick, too. This time I picked up the best battery life money can buy and I don't bother with that anymore.
As I said I'm very satisfied with it and I'm going to use it for quite a while.
Most often Macs are a better choice, but Microsoft invested to much into tablets to give up its domination in this area. This time I've chosen a tablet, but may be next time I'll end up with a Mac just like you.
I hope you read that. You posted your answer 18 days ago, sorry for not replying earlier.
Vista Business is a great OS and as a user I like it much more than XP or Linux (I used Mandriva a couple of years ago and have Ubuntu HH at work). I know that from architectural point of view Windows is inferior to Unix operating systems but as a user I'm very satisfied with it. I tried Mac (worked a couple of days with it) but didn't find it groundbreaking. I'm working mostly with Java and it's a second class citizen on Mac OS X. My browser of choice doesn't look great on it, too. My editor of choice is not TextMate either.
A usual day for me on Windows starts with firing up a couple of applications and after that OS disappears. On Mac or Linux I constantly feel it. That makes me feel uncomfortable and as a result after a whole day I'm more tired.
I also don't own a smartphone but having wifi and Skype on a mobile phone would be nice. The only Apple product I have is an iPod nano which isn't that bad per se but it comes with iTunes and QuickTime. The former is quite Ok but QuickTime always hijacks my file dependencies and is very annoying.
Mac OS X users today are somewhat similar to Win 98 users in a sense that most of them are ready to pay for desktop software. To my mind your target platform choice is totally reasonable. If I developed an application for Windows I'd picked AIR and did everything in HTML/CSS/JS or played with Why's Shoes. Silverlight might be a good option, too.
I hope surprised you at least a little bit: I love Mac, but I'm a PC :)