Android’s just desserts include Eclair and Flan

Google’s Android czar Andy Rubin is touting the next updates to the open source mobile operating system — after Donut will come Eclair, followed by Flan.

Rubin made the comments at a recent media event in San Francisco, the “Wall Street Journal” reports, and he also reiterated that he expects 15 to 20 different Android devices to be on the market by 2010.

The vice president of mobile at the search giant did not provide any details about what features are included in the upcoming Eclair and Flan upgrades, nor did he provide any information about when they would be out.

Rubin did, however, say that social networking is a priority for future Android versions and that they will have better integration with sites such as Facebook.

T-Mobile’s second Android handset, the myTouch, is available now for pre-order and goes on sale Aug. 5 and the highly anticipated HTC Hero is expected later this year. Meanwhile, Acer, Samsung and Motorola are also releasing Android smartphones in time for the holiday shopping season, though it’s too early to tell whether these will be based on Donut, Eclair or Flan.