The poster lists this unnamed device as having an Adreno 205 GPU, 384MB RAM, and a "7230 CPU". No clock speed is listed, but it's safe to assume that "7230" refers to the Qualcomm MSM7230 processor which recently made an appearance in HTC's Desire Z/G2 running at 800MHz, though it is also capable of running at up to 1GHz.
Sony Ericsson has confirmed that it will not be updating its Xperia X10 line of smartphones to Android 2.2 Froyo. So, owners of the Xperia X10, X10 Mini and X10 Mini Pro will be stuck on Android 2.1 Éclair for the foreseeable future. However, Sony Ericsson has promised to provide some minor software updates, with features such as multitouch, later this year.
If you were looking for another reason to buy Google's Nexus S, here it is.
X10 Mini/Mini Pro Multitouch
Single handed operation seems to be the theme throughout their whole post, insisting that even though the users clearly want multitouch, the devices are better without it (who are the users to dictate what's better, eh?):