At&t subscribers get ready for a taste of that ultra-sexy 5-megapixel slider, the LG Secret.  According to the latest At&t Rebate Sheet, the LG CF750 (Secret) will be available as either a PostPaid or GoPhone with a $50 rebate.  The rebate form is dated December 26th to January 24th so a launch can be expected during that time frame.  While we would prefer to see some spy shots this rebate sheet is definitely a start and enough evidence to warrant further investigation.  Also included on the At&t Rebate sheet is the Motorola VA76r ‘Tundra’, a rugged flip that is currently available in Canada on Rogers Wireless.  The VA76r ‘Tundra’ will join the Samsung Rugby as one of the two rugged phones being offered by At&t in 2009. [EngadgetMobile]