Parallels Desktop has been updated to version 9.0.24237 with some fixes for issues related to the upcoming OS X Yosemite. The release fixes a crash that occurred when starting up Parallels Desktop 9 when running Yosemite, and it squashes a bug related to dragging and dropping files between Macs with Yosemite and virtual machines. It also removes a black screen that appeared on startup when running Mavericks 10.9.3 and 10.9.4 virtual machines, resolves an issue with Parallels Desktop 9 failing to update, and ensures that network connectivity remains after resuming a virtual machine. ($79.99 new, $49.99 upgrade, $39.99 educational, 361 MB, release notes)
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.