A number of Windows Phone hardware specific updates began rolling out on Wednesday.

WinRumors readers have reported device specific updates for the HTC Mozart, LG Optimus 7 and Samsung Omnia 7. Microsoft previously promised that updates would begin rolling out “soon” in a blog post earlier this week. The updates will improve battery life, call clarity and touch responsiveness etc. The updates are device specific and will improve certain functions of devices. Not every device will receive an update however.

One WinRumors reader, Mihai, reports that the update took around 30 minutes for him on an LG E900 Optimus 7 device. “The touch screen is faster and smoother,” said Mihai. “I cannot say anything about battery life and call clarity yet,” he added. It’s not yet clear what improvements are available for the Omnia 7 or HTC Mozart. If you spot an update for you device, please let us know in the comments section below.

Microsoft originally delivered its pre-NoDo update on February 21, followed by the full NoDo update on March 22. The software maker is now readying its Mango update, due later this fall. Microsoft is rumored to have completed work on the update and RTM’d it recently. Mango will include 500 new features when it’s available later this year. Microsoft has improved its range of hubs and included support for multitasking and HTML5 browsing. Microsoft is expected to launch Windows Phone 7.5 (Mango) in or around September.