Mobile app news roundup: iPhone 5 coming to China, Windows 8 phone releases, DeNA and Yahoo! expand alliance partners with Buzztouch — announced that users who submit their app ideas to its monthly contest and receive the most interest from the community will now be able to use Buzztouch’s hosted software to create and manage their app.

DeNA and Yahoo! expand their business alliance — DeNA and Yahoo Japan Corporation today announced that they agreed to expand their existing business alliance for PC-based social games in Japan to include offerings for smartphones and other smart devices. The Yahoo! Mobage service is directly accessible from Yahoo! JAPAN, which currently has over 26 million active user IDs. The companies are also planning to continue their collaboration for Yahoo! Mobage, including joint development of PC games.

Gameloft expands support for Duo Gamer controller — Mobile games developer Gameloft today announced that Modern Combat 3 and Brothers in Arms 2 are now optimized for its branded Duo Gamer controller for iPad, iPhone and iPod touch. You can read our review of the Duo Gamer here.

HeroCraft brings Magic Orbz to iOS — Russian game developer HeroCraft announced that its bringing the PlayStation Network game developed by Creat Studios and co-published with i-Free Magic Orbz to iOS in the coming weeks. Magic Orbz is an Arkanoid-style game with realistic physics which features 42 levels. You can watch the trailer for the game here.

Monster Galaxy Exile available for free — Gaia Interactive today announced that the sequel to its monster collecting game Monster Galaxy: Zodiac Islands, Monster Galaxy: Exile is now available for free on iOS, Android and Amazon Kindle Fire.

Freshdesk launches MobiHelp — Cloud-based customer support platform Freshdesk announced the launch of MobiHelp, a free mobile SDK that allows iOS developers to integrate their Freshdesk help desk into their apps with just a single line of code. Developers get to use the customer support capabilities in Freshdesk to automate workflows, identify critical issue areas and complete the conversation loop with their users.

China Telecom brings iPhone 5 to China in November, early December — All things D Is reporting China Telecom Corp. plans to start offering Apple’s iPhone 5 to Chinese customers in late November or early December.

AT&T begins selling Windows 8 Phone devices, Verizon starts taking pre-orders AT&T began selling Windows Phone 8 handsets including the Nokia Lumia 820 and 920 and the HTC 8X. Verizon also began taking pre-orders for the HTC 8X and Nokia Lumia 822 and 820.