It's called Matchbook and they have plans to compete with Betfair in the future. At the moment they offer 0% commission on all In-running Football until December. I've been using it the last few days, and although it's fairly new, everyone has to start somewhere. Betfair wasn't built over night, so sign-up for an account and show them your support. If anyone wants to get in contact with the owner with any ideas or otherwise, you can contact them at firstname.lastname@example.org or on Twitter at @matchbookallan or @TeamMatchBook.