Of all the manufacturers who participated in the Android Update Alliance (AUA), HTC has been found to have the most up-to-date Android smartphone.

Thirteen of the HTC-manufactured phones have Android 2.3 or Gingerbread. LG, however, has the most number of phones (9 of 15, or 60%) that have received Android updates, while HTC has 14 out of 24 (58%) that have received updates.

Samsung, however, has the most number–33 in total–of Android smartphones released to various mobile carriers. (The number includes the count for the same handset but released to different carriers.)

Android and Me tracked the statistics and came up with infographics showing the numbers.

Of the total number of Android phones covered by the AUA, thirty-two handsets already run Android 2.3 Gingerbread, 23 handsets still have Android 2.2 Froyo, and only 6 are still stuck with Android 2.1 Eclair. These figures exclude handsets made by Kyocera, Casio, Huawei, and Pantech.

On the carriers’ side, Sprint (US) and Vodafone (Europe) are the ones having the most number of handsets that have received Android updates. AT&T promised to update the mobile devices it released this year, while T-Mobile and Verizon are still not updating so far.

The oldest phone model (HTC EVO 4G), which is still available, has been updated from 2.1 to 2.3 while the HTC myTouch 3G Slide leapt from 2.1 to 2.2.

Just recently, Google stirred a lot of excitement for mobile users after it announced the Android Update Alliance at this year’s Google I/O. Google has partnered with wireless carriers and mobile manufacturers with the determination to speed up the updating process.

These carriers (AT&T, T-Mobile, Vodafone, Sprint, and Verizon) and manufacturers (HTC, LG, Samsung, Sony Ericsson, and Motorola), along with Google, have promised to provide updates for their Android phones within about 18 months after the announcement.

Further details about the Android Update Alliance were not announced during the Google I/O. How Google and the rest of the Alliance would deal with their job is yet a big question.

In the past three months, however, there is still no sign of change in the current problem. Questions about the Alliance include Google’s role in it. Does Google serve as a guiding force in the Alliance or does it have active participation?

People have also asked whether mobile devices released prior to the announcement are covered by the 18-month update duration. That we do not know. Also, are there guidelines on how long it should take for devices to receive an update after release of new Android versions?

Although these issues remain unanswered, a lot of Android phones have received updates recently. The Alliance may have been doing what it’s supposed to do, but there are still those running outdated Android versions.

Gladly, most of the devices released after the announcement have come with Gingerbread. HTC and Sony Ericsson’s newest gadgets are also updated.

Though many of the other manufacturers and carriers who joined the Alliance have not yet done their fair share, we hope they would soon act on it and provide updates for their Android phones, too.

What do you think ought to be done to speed up the release of updates for your Android phones?

Image credit: Android and Me