Here’s the latest action:

zimbra-logoVMware looks to buy Zimbra from Yahoo — Several anonymous sources have said that Yahoo is shopping around for a buyer for its open source email unit, Zimbra, and that VMware looks like the best bet — even though its bid is lower than the $350 million Yahoo bought it for in 2007.

148apps opens voting for best apps ever — The San Francisco company is calling for votes for its second annual Best App Ever Awards, focused on highlighting the biggest achievements in iPhone app development. There are 56 award categories and 26,899 nominations. Voting will end on Jan. 31.

Tweexchange checks Twitter handle availability — Tweexchange, a startup that once aspired to be the Craigslist of Twitter, has now become a service for people to check whether usernames on the micro-blogging site are still available, as well as domain names related to your requests.

Ecofactor nabs $2.4M for energy efficient thermostats — The company, which turns two-way thermostats into memory devices that can regulate temperature based on energy conservation and past comfort preferences, has raised $2.4 million in a new round of funding led by Claremont Creek Ventures. Earth2Tech broke the news.

MIT3A123A123Systems biggest IPO of 2009 — The battery maker’s public sale racked up $371 million for the company in September, making it the biggest of the year and foreshadowing an even bigger year for cleantech investing in 2010. The share price jumped about 50 percent during its first day on the market from $13.50 to $20.29.

Android finally kicking butt, taking namesNew survey data from ChangeWave shows that the release of the Mobile Droid smartphone has kickstarted the Android OS’s market share, which jumped 3 percent in three months. On top of that, 21 percent of prospective smartphone buyers plan to buy a handset with Android installed.