newegg offers the Kensington iPhone Charge and Sync Dock, model no. K39257US, for $19.99. This $10 mail-in rebate drops it to $9.99. With free shipping, that's tied with our January mention and it's the lowest total price we could find by $10. This dock is compatible with iPhone 4, iPhone 3GS, iPhone 3G, and 1st/2nd generation iPod touch. Rebate expires July 20.