So every developer that attended the Google I/O conference got not only an HTC Evo 4G, but they also got the brand new Android OS, Android 2.2 (a.k.a. Froyo, which stands for Frozen Yogurt).

In a morning keynote at the second day of Google's annual developer conference, Google took the wraps off the new operating system. Top new features added to the operating system included: Wi-Fi hot spot, tethering and support for the Flash 10.1, as well as a host of new enterprise solutions.

Google was also intent on making the point that Froyo will be much faster than past iterations of Android. According to the company, apps will run anywhere from two to five times faster on Froyo.

The addition of Flash support is undoubtedly what will echo throughout the industry today. In light of Apple's spat with Adobe over Apple's exclusion of the popular media platform from the iPhone, Google trumpeted it's rally cry of "Open" loud and clear in what was undoubtedly a subtle shot at one of Android's biggest competitors.

Tethering is yet another battle being waged between Apple and Google. While Apple has opened the technology, AT&T has yet to enable it on the iPhone. Recent reports from developers working with iPhone OS 4.0 Beta say that AT&T will indeed offer the service in conjunction with the release of the next version of the iPhone OS. Still, whether you're running Android or Apple, the carrier will decide how much you pay for the service.

Turning the phone into a genuine hot spot, similar to the Mi-Fi hot spots offered by carriers, is one of the up-and-coming smartphone features highlighted with the release of the Evo. On the Evo, users who choose to purchase the hot spot service will pay $30 a month and can connect up to eight devices of any kind through the phone's 3G or 4G connection.

Google's highlighting of Android 2.2 on the HTC Evo, a device being pushed as an HD media-rich device, was done in conjunction with the announcement of Google's new Google TV service. Google promises complete control of the service from any Android device and stresses that the service will integrate all of the screens in a person's life, from mobile to TV.

Google also offered a preview of an upcoming Web-based version of Android Market and an update to the native music app, which will allow users to access their music from Android-based handsets.

Developers can download the Android 2.2 SDK and Android NDK, Revision 4, now from the Android developer site. Froyo will be made available to OEMs and the open source community in the coming weeks.