The Micro SD cards from Play.com are fully compatible with Transflash memory card slots. With the use of an adaptor, which Play.com supply with each Micro SD card, the Micro SD card can be made full size and work as a standard Secure Digital card in many other devices such as digital cameras, MP3 players, navigation systems and PDA's.
With the Play.com MicroSD card your mobile phone will be able to store more images, ringtones, mp3's and movie clips than ever before.
* Save images, ringtones and files on your mobile * High - Speed Data Transfer
* Supplied wih adapter * Compatible with Transflash memory card slots * 5 Year Warranty
Let me know if you've found something cheaper... be wary of some Amazon deals as they do not include P&P.