Reply #15: I upgraded and like it a lot, but you will lose any PowerPC [View All]

[Hissyspit]

Apps (no more Rosetta); Adobe mostly, lost use of my Photoshop (will cost $200 to upgrade). Also lost use of my USBConnect card, but bought a portable router and it works great that way, now. No other bugs that I can see. Realize that it may cause your fan to run and your computer to get hot while it indexes. People have complained about this because they didn't know what was going on.

Interesting stuff here: http://www.businessinsider.com/should-you-buy-mac-os-x-lion-2011-8
Great slide show overviews. Each article leads to another article so read them all. What's new to Lion, What Lion killed, etc.