i've only had my phone since the weekend - it's an orange san francisco (aka zte blade) - an absolute bargain at less than £100! i can thoroughly recommend it to all poor people looking for a smartphone.
(for those that don't know orange is a [mainly] european network provider - luckily the phone is easily unlockable, enabling it to be used with other, better networks.)
it originally came with an awful orange-ified 2.1 rom - i played about with it for a few days, learned about rooting etc, managed to semi-decrapify it, then decided to have a look at a froyo custom rom.
so far, so good - it's sorted a major problem i had reconnecting wifi after sleeping, seems to have better battery life, and adds overclockability - stock speed is 600 mhz and i've had a successful lengthy angry birds session at 750 mhz.
i can also recommend the MoDaCo forums for everything mobile-phone related, with a large android sub-forum
, with sub-sections for specific phones - my phone seems to have the largest thread count at the moment.
i'm thinking of looking at a gingerbread cyanogenmod next, once a few issues have been ironed out...