Excerpt: Apple seems to be happy with releasing iMac updates once per calendar year. The new iMacs replace models that were released 10 months ago , which is an eternity in technology. And before that, there was an 8-month gap between iMac updates. Fortunately, the new iMacs feature significant changes that result in a performance boost.
Pros: Compact, all-in-one design; good speed boost over previous analogous model.
Cons: Glossy screen may frustrate some users; FireWire 400 peripherals require an adapter; still uses 6-bit dithered display.