I've found information for Thanet here
, all it says for Westgate is by the end of 2012.
Samknows just shows 2012, although it does show an ADSL2+ date of July, so that would give quicker speeds until FTTC arrives. Some ISP's will also uncap your upload speed, but you need to ask.
It may well get brought forward, a few weeks ago the only info I had found for Broadstairs was Autumn 2012, now it's showing as RFS set 1/03/2012, although BT Wholesale checker gives no information.
I've noticed quite a few new cabinets around Broadstairs/Ramsgate on my travels, one of them being mine.