Popular microblogging service Twitter announced the latest update to its iOS and Android apps on Tuesday. The updated Twitter apps give the iOS and Android users of the service the ability use new search filters to find and filter only that content which they want to see.

In a move which expands Twitter's ad targeting capabilities, the popular microblogging service has revealed in a Wednesday announcement that has introduced some changes which will enable marketers to target mobile ads by device, OS version, and Wi-Fi connectivity.

With microblogging service Twitter's initial public offering (IPO) just round the corner, and its shares likely to start trading on Thursday, November 7, the company has recently raised the price range of its IPO.

In a move which underscores Twitter's bullish outlook in the wake of its trading debut this week, the company raised the price range for its IPO to $23-$25, on Monday morning.

An announcement was made on Thursday by Twitter stating to become a publicly traded company. It has already begun with the paper work to initiate the process. The announcement was made through a Twitter message at 5 pm, Eastern.

"We've confidentially submitted an S-1 to the SEC for a planned IPO. This Tweet does not constitute an offer of any securities for sale", the company said in message on its social network feed.

Popular microblogging service Twitter has - through the Google Play app marketplace - launched a beta testing program on Android. The program is dubbed `Twitter for Android Experiment Program;' and Twitter has already started taking sign-ups for it.

Twitter's beta testing program on Android gives the users the ability to test the newest, yet-to-be-released builds of the social network's Android application.

Popular microblogging service Twitter has revealed in a recent announcement that it will simplify its abuse-reporting mechanism on all platforms, including desktop Web, mobile Web, as well as iOS and Android apps.