Your Mac Life host Shawn King admitted that he normally glazes over when topics like multitasking are broached, but a good time was had by all while discussing all the things we think of when we say "multitasking" and how (or if) we'll see support for them in the iPhone OS.follow link
Improve Apple Services with AirPort Base Stations
You can make iChat file transfers, iDisk, and Back to My Mac work better by turning on a setting with Apple AirPort base stations released starting in 2003. Launch AirPort Utility, select your base station, click Manual Setup, choose the Internet view, and click the NAT tab. Check the Enable NAT Port Mapping Protocol (NAT-PMP) box, and click Update. NAT-PMP lets your Mac OS X computer give Apple information to connect back into a network that's otherwise unreachable from the rest of the Internet. This speeds updates and makes connections work better for services run by Apple.
- ExtraBITS for 8 March 2010 (08 Mar 10)
Adam Discusses iPhone OS Multitasking on Your Mac Life