Second Android-powered smartphone is expected to be released this summer. The Google-backed Android is improving in both the smartphone and netbook categories. G1 maker HTC will offer its Android-backed Magic in China, and Google expects 18 to 20 new devices.

T-Mobile’s G1 smartphone, the first major Android device, will soon have a sibling. Reuters declare receiving an e-mail from T-Mobile confirming that it will offer another Android device this summer.

Google-backed, open-source mobile operating system may be increasing its presence in the smartphone industry and possibly in the growing category of netbooks.

More Than a Million Sold

Since last year T-Mobile’s G1 has already sold more than a million units. Other manufacturers, such as HTC (maker of the Dream, or otherwise the G1 in the USA) announced close introduction of another Android device – the Magic – in China next month. There has also been Android software news as T-Mobile last week released Android version 1.5 to G1 users.

Three Android phones have been formally announced — the Samsung i7500, and the two HTC phones. Android is absolutely increasing its presence in the smartphone market.

Android version 1.5 gives the original G1 more polish and its virtual QWERTY keyboard makes all-touchscreen devices like the HTC Magic and Samsung i7500 possible.

Google has recently announced 18 to 20 new Android phones will be released this year, from at least nine manufacturers. Android is very likely to become a mainstream mobile OS choice.