Play.com have the "Nexxus Bluemicro Pro V2.0 Bluetooth Dongle" back for just £5.99 on their website. Delivery is free. QuidCo is 4%, if you wish to take it.
This was previously listed on HUKD at £6.99 and hit votes of 156 before going out of stock.
At 1.9cm this is arguably the smallest Bluetooth dongle in the world today. Despite its diminuitive size, Bluemicro PRO offers the same super-fast transfer speeds and enhanced connectively as other standard-sized V2.0 Bluetooth adaptors, without the disadvantage of 'bulky' adaptors which often get left at home! Bluemicro PRO's ultra low-profile (only protrudes by 7mm) means that once it's plugged in, it can be left in, making it the ideal solution for those who need Bluetooth connectivity on the move.