Zinc-Air rechargeable batteries could be the biggest technology evolution this year.

“In scientific terms, these batteries rely on reduction/oxidation reactions between a zinc and air (oxygen) electrodes. By using new gelling and binding agents, the previously single use batteries can be recharged. They have been tested for up to 100 cycles, but could be capable of 300-500.” -Maximum PC

So could this be the tech for electric cars and small devices? As they are much greenier then current lithium-ion batteries (which are also HEAVILY patented).

Zince Air Prototype. Image Credit: physorg.com

We shall see a ReVolt who makes then will start production in 2010.

Beta 4.1. Image credit: cnet.com

New features include:

1. Support for links in all windows, and twitter hash tags+replys
2. Scroll bars in cards
3. Avatars added everywhere
4. Different views
5. Twitter search
6. Tweet from contact list
7. Support for ignore tweets
8. Follow/unfollow direct support for twitter
9. Twitpic integration
10. Bit.ly/tinyurl support
11. Character count for twitter
12. Confirm before tweet.
13. Facebook stream support.

It’s still beta but you should try it out here!