One of the joys of mobile devices this year, thus far, has got to have been getting some hands on time with the new Sony Ericsson X10 Mini and Mini Pro (compact versions of the Xperia X10) – which Sony Ericsson are hailing as “the world’s smallest Android phone” – the X10 Mini is just 83x50x16mm and weighs just 88g whilst the X10 Mini Pro is just 90x52z17 and weighs just 120g.

The X10 Mini Pro is essentially the same device as the X10 Mini but includes a side slide out QWERTY keyboard (which is highly usable too – much bigger than the one on the Palm Pre). The keyboard adds a little bulk to the device but it still manages to remain quite compact. As the device is small the display features a new “four corner control” mechanism which essentially act as four touch screen soft buttons, one in each corner of the display.

Sony Ericsson have worked their Timescape technology into the device which unifies many of the social aspects of the phone, bringing together related content from the likes of Facebook and Twitter. Another new term from Sony Ericsson is the “infinite button” which connects otherwise disparate pieces of information.

The phone uses a 2.55 inch touch screen with a resolution of just 240×320 (up to 16m colours), and uses Android 1.6 as it’s operating system which makes it immediately usable, and the 2GB included memory card (upgradable to 16GB) should be enough space for many applications.

That’s not all, the X10 Mini manages to bring a 5 megapixel phone to the table, Wi-Fi and Bluetooth and will be available in a number of colours (depending on region) including Pearl White, Black, Pink, Lime, Red and Silver.

To learn more visit the Sony Ericsson Xperia X10 Mini Pro website.