From social updates to holiday perks, Android apps have plenty to celebrate as we near the close of 2010. Seesmic, for one, has steadily updated its Twitter app, with this latest update incorporating even more services. has also outdone itself, hitting a major milestone for mobile downloads this week.

Social & entertainment

Nextag has re-launched its price-comparison shopping tool, with a new look and features. Search has been improved with added filters, like price, brand and ratings. More details are included on product pages, so you know what your total costs are, after shipping and tax. With a bar code scanner, store locator and wishlists, shopping is easier with this free Android app.