Update 1: iOS 5 Final version has been released for Download and Jailbreak - Click Here
Apple pushed out iOS 5 beta 2 for developers yesterday with numerous new features and enhancements. iOS 5 beta 2 not only allows you to sync your media over WiFi with Apple’s new WiFi Sync feature but it also allows you to enter Recovery Mode via WiFi using a recovery tool such as TinyUmbrella or Recboot!
Earlier, users used to get into recovery mode by holding down the combination of buttons which often resulted in user frustration. However, with iOS 5 beta you can do this completely wirelessly, using RecBoot for Mac and other similar utilities like TinyUmbrellea. 9to5 Mac reported
You not only can sync your media wirelessly in iOS 5, but it appears you can enter Recovery Mode using ‘RecBoot, Etc’ from the Mac.The possibilities for wireless recovery mode are endless, if it stays connected, eventually we might even see wireless Jailbreak utilities!