Just caught this deal on TechBargains.com. Buy.com is selling the Dane-Elec 4Gb MicroSDHC card for $26.95 with a $15 rebate. This includes free shipping making this a pretty sweet deal.
The product can be found here and the PDF rebate can be found here.
The deal expires on August 3rd 2008 so hurry.
If your not up for a rebate. TechBargains also found the A-DATA 4GB MicroSDHC card for $16.99 with free shipping at SuperMediaStore.com with the coupon code HOT25P but that expires on August 1st 2008 (Today).
