The first device to run Google's long-awaited Android mobile phone platform will be officially unveiled on Tuesday.

After countless unconfirmed reports about the launch date for the Android-powered HTC-manufactured device, vnunet.com today received an invite to "get hands-on with the product news" at a press event next week.

"T-Mobile and Google have been working in partnership on an exciting project and are set to make a much anticipated announcement in New York on Tuesday 23rd September [3:30pm BST]," the email invitation reads.

The UK briefings will offer a chance to get "the full details of the announcement and the opportunity to get hands-on with the product news".

However, availability of the product will initially be restricted to T-Mobile customers in the US, according to general reports.

The device, dubbed the HTC Dream or G1, is set to retail for about $199 and is likely to feature a slide-out keypad and built-in GPS.