No mate, it's deffo the Sky Talk retention problems; they are offering the broadband at a loss on many exchanges, and the way they aim to sustain this is to offer a triple play service, so customers take TV, phone and internet in one package.
Thier strategy however is to try and make the broadband and phone bail each other out, and keep the TV immune from losses incurred via the telephone and internet services (don't forget they had to raise £1 billion on the back of the TV to purchase Easynet and launch Sky Broadband to begin with, and last week they raised another £400 million - most probably for the planned acquasition of Tiscali - so the TV has taken a hammering financially already), and if customers are keeping the broadband, but subsequently ditching the telephone for another CPS, then that's where the problems begin.
Im still with Sky Talk (both for calls and landline rental) and have had much much better and honest service than I ever got from BT, so won't be leaving unless I ditch the Sky TV of course. It depends on what you want to do with the phone, as to whether Sky Talk returns good value for you.
Incidentally, all new Sky Talk landline customers, will get £5.00 per month line rental for 6 months, so this is an excellent deal if you don't already have it. Not only does it allow you to retain your dirt cheap broadband, but it is less than half BT's standard charge (£11.75) for the line rental, in fact the broadband and line rental together come's in at £10.00. The best idea about it is, you can tell them yourlaving at some point and see what they offer you to stay.
The problem is, try finding another ISP as cheap, and one that does not traffic shape, throttle etc... They don't exist because the Sky Broadband services are supplied at a loss in a lot of cases, which other companies would not be able to sustain, so Sky are hardly ripping people off. I know of at least 2 people who are still on Connect, and they are only paying £5.00 per month. BT charge around £12 for a PPP connection to the L2TP tunnel, so Sky are deffo taking a loss on these customers.