Phonearena review ->
http://www.phonearena.com/htmls/Sony-Ericsson-Xperia-X10-mini-Review-review-r_2453.html
Conclusion:
You may have felt it already that the Sony Ericsson Xperia X10 mini left us with some very positive impressions - it is snappy, functional and cute as a clumsy puppy. As the creator of the minimalistic Android handsets market niche, its maker can only be praised about execution. The company has shown how Google's mobile OS can be painted over for a smooth and flawless user experience even on a small canvas.
We really like the UX interface on the Sony Ericsson Xperia X10 mini for its simplicity and smooth flow. Even if we distanced ourselves from Timescape and Mediascape (not available on the X10 mini), the deeply coherent interface on the Sony Ericsson Xperia X10 and the X10 mini feels much like a brand new OS, not even a shell over the Android kernel.
The Sony Ericsson Xperia X10 mini is a tiny everyday hero which offers a great improvement over the stock Android user experience, probably on par with what the iPhone can give you out of the box - this would have been a blasphemy just a few months ago.
There aren't much, if any, smartphone alternatives to the Sony Ericsson Xperia X10 mini currently on the market, although there are some diminutive featurephones. Thus you are all set to be unique and colorful as a proud owner of this puppy gadget and when its keyboarded version, the Sony Ericsson Xperia X10 mini pro, arrives in a month, it will be a welcome addition to the ever expanding X10 line.