Sleeve that's a good price on them. Originally buy.com had them for $25 on a special, and a few of us picked them up, which I currently have here at my house, waiting to get it's time to play in the i760.

Prices are around $35-40 for non-sale ones, but if you shop, you can find for $25 or less, and that is currently a good deal.

I am unaware of a referral account at Amazon.

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-Michael
Need help setting up your i730/i830 or other WM2003/WM5 Phone, as well as the other hacks I have done, check out the MRailing Guides and Links