Well, I've now picked up the next-gen Mini Pro (it was really cheap!) and I'm not using my old Mimmi anymore.
It's sad really. This is my first Android and I've learnt so much and the format in the year and a half since I got it. I've had a lot of phones over the years but this is easily one of my favourites.
That said, the 2011 Mini Pro has so much more POWER!!
Many thanks to everybody here. I hope to see a lot of you in the Xperia Mini Pro forum!