Sony Ericsson has unveiled two new, compact versions of its Xperia X10 handset at the Mobile World Congress in Barcelona, Spain. Both the Xperia X10 mini and X10 mini pro are smaller than a credit card and will combine the Android platform along with a version of the company’s UX platform specifically designed for smaller devices. The handsets will take advantage of the X10’s interactive music player which uses the “infinite button” to pull together content from the music store and YouTube, while the X10 mini pro also features a slide out QWERTY keyboard.

The two mobile phones incorporate the signature application Sony Ericsson Timescape, which brings all communication together in one place so users can see at a glance text messages, missed calls, and Facebook and Twitter updates, without having to open lots of different applications. Users will also be able to customize the home screen’s four corners and widgets to access the most commonly-used applications.

“There has been an enormous buzz around Xperia X10 so it is really exciting to be already unveiling compact versions of this powerful proposition,” said Rikko Sakaguchi, EVP and Chief Creation Officer, Sony Ericsson. “With the X10 mini and X10 mini pro we have pushed the boundaries of what is possible with smaller devices and are giving consumers exactly what they want; two high performance mobile phones with a fully customizable user experience platform and a stunning ultra-compact design.”

The devices incorporate a 5MP camera and support HSPA 900/2100 and EDGE 850/900/1800/1900, HSPA 850/1900/2100 and EDGE 850/900/1800/1900.

The X10 mini will be available in selected markets from Q2 in Pearl White, Black, Pink, Lime, Red and Silver, while the X10 mini pro will come in Black and Red.

To coincide with the new handsets, Sony Ericsson is also introducing the Portable Stereo Speakers MS450 for on-the-go sound and the Hi-Fi Headset MH810 with remote for media and call handling.

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