T-Mobile UK this morning announced the Pulse, the first pay-as-you-go Android 1.5 smartphone and the third coming from the network operator.

Available for £180 starting October exclusively on T-Mobile, it boasts a 3.5″ HVGA touchscreen display, the biggest yet on an Android handset, a 3.2-megapixel camera and a TeleNav-powered GPS (more specs below).

The new device comes courtesy of Huawei, which had been rumored to be working with T-Mobile since displaying a device at the Mobile World Congress in Barcelona earlier this year.

More details about the device:

The phone runs on a Qualcomm’s MSM7200A chipset and weighs 130g. It features a trackball and a 3.5″ HVGA touchscreen display with auto-rotation.

The T-Mobile Pulse also features a 3.2 mega pixel, auto-focus camera (no flash) that allows photos to be uploaded straight to the Internet, a 2GB internal memory and a micro SD card slot for storing media. The handset also offers access to corporate e-mail through the Road sync client, and boasts enhanced social networking and community features.