I'm using a 12in power book for web design and research work. The only problem I've had so far is transfering Word documents created on the Mac to PC, if I import Excel graphs directly into my Word and PowerPoint files then they show up as a large red X on the PC. But I still use the Mac version of Word just because I like it and can do things faster than on the PC version. The coolness factor had a hand in making me pick up a Powerbook as well. It's just so cool and compact and thin, none of the PC notebooks really compare.