The Cahoot bank is one of the new breed of internet banks, and is owned by Abbey National; but it doesn't sell the same products as Abbey National, and bears no resemblance to Abbey National's online banking service. Cahoot bank, like most online services, uses two ways to attract customers- technology and product diversity. In technology terms, Cahoot had a very dodgy start- its banking service regularly conked out in its early months, and there are rather too many tales of fraudulent use of Cahoot services (which were also not treated with good customer service). However, those days may be over, and there are plenty of satisfied customers too. While you can access your Cahoot account online and across WAP, digital TV access (if that's your thing) is coming next year; lagging some way behind other banks who already offer that.
Cahoot does have some awards under its belt- including two for Best Credit Card, and one for best authorised overdraft; and to compete with the premium account services of some high street banks, they also offer shopping bargains, which include up to 10% cashback on credit card purchases at some outlets- nice! Also, unlike some internet services, this is a full current account- you get exactly the services you'd expect from a high street bank.