Imagine having a 2TB external HDD.. Now imagine a wireless HDD thats also a WIRELESS ROUTER and you've got the new apple time capsule.
The Ultimate Wireless Base Station
Fits your wifi lifestyle:MAC and PC compatible!
Faster simultaneous dual-band operation.
Share the Internet securely with guest networking.
Access your drive over the Internet.
Print command central.
Read Here:
http://www.apple.com/timecapsule/wireless.html
One Click Continuous Back
Even faster Time Machine backup (Mac os featue)
Backup for everyone.
Room for it all.
Read Here:
http://www.apple.com/timecapsule/backup.html