Macintouch reviewed Apple's new 802.11n router: Review: AirPort Extreme 802.11n. It's pretty negative, though they tried to be kind. Slow, quirky, hot. Bleh.
I'll wait for version two.
One side-comment caught my eye:
As a side note, USB disks we attached never spun down when idle. This maximizes AirPort Disk's availability — a client will never have to wait for a disk to spin up — at the cost of increased power consumption.The power consumption is trivial, but this also shortens the life of the drive. Another negative!
[Update: A Google study on hard drive longevity claims spin down has no effect on drive lifespan. Even so, I like spin down just to reduce noise.]