Virgin contract with free broadband?

200 mins and 500 text for £15 including 12 months free broadband
http://www.virginmobile.com/vm/paymonthlySimOnly.do

The free broadband is Virgin Broadband Plan 2 up to 8Mbps
https://client.virgin.net/productpicker/productspage

I can't see many negatives on this one except

1. No free phone (OK with me cos mine is fine)
2. 6GB cap (The wife will be pleased I won't be spending so much time on PC)
3. Free broadband only lasts 12 months ( but at £18/month it's pretty
competitive at the moment)

It's also available to existing Virgin mobile and broadband customers.

This would replace my Pipex 1meg unlimited connection (£23.44/month) and my
pay monthly Virgin sim at around £3/month (tight or what!). Saving me around
£11.44/month and £137 for the next year and I get to use my mobile without
worrying too much about the cost.

Have I missed something?