I got a MB a few months ago and find that I'm just not interested in it and have been going back to my Windows desktop more and more. I just dont see what there is to do on the MB, so what do you guys do on the MB(P) and maybe i'll get some ideas and actually use this damn thing!
As a college student that moves constantly and takes his laptop everywhere, my MBP is my one and only computer. Common tasks
1) LaTeX for word-processing/typesetting. And I mean everything. MS Word
is a piece of dung. I use AquaMacs for any sort of text editing.
2) Programming -- I hate IDEs, and gcc is amazing for compiling C, C++, and Pascal, and I don't have to use Cygwin or the like to get it to work... Am waiting for the OpenMP support in the next version. Also do a lot of work in Java and Haskell.
3) Photo editing -- GIMP rocks, because I am poor and don't want to buy Photoshop.
4) Web surfing -- this should really be number 1 because I spend most of my time on the web
5) IM -- ...and don't fool yourself, thanks to Adium 1.0, there is no decent counterpart in Windows (gaim sucks because GTK is bloatware, don't get me started on native clients...)
6) iTunes -- I've tried a lot of MP3 players. Quintessential, Winamp, foobar, etc. iTunes isn't perfect, but iTunes on the mac does just fine for me (it doesn't seem to agree with Windows so much...)
7) iPhoto -- see 6 for similar commentary
8) WORLD OF WARCRAFT! Remember, Blizzard is awesome, programs an OpenGL version of all their games, and they all work on Mac. <3 Blizzard
9) E-mail -- Can't believe it took until 9 for this, as it is probably just under Web and IM in terms of time spent. Mail.app is really nice, although I use gmail.
etc etc
Now, can you do all of this on a PC? YEP! That's the thing about computers, they're programmable =p If a task is computable they can do it, usually on either OS because, while Windows is a horrid operating system, it is a full featured one, and there is software written to do just about everything.
Is everything as elegant visually, conceptually, and programmatically on a PC. Definitely not. OS X isn't implementing any bleeding edge ideas in computing (if it were it would be a lot less stable), but it is innovative, well done, CORRECT, and much nicer on the eye than windows. It's user interface is much more intuitive and efficient. The most common complaint I hear from switchers is, "I can't do X the way I did in Windows," to which I reply, "That's the point!"