Presumably intending to highlight how Sprint’s upcoming Samsung Epic 4G Touch would fare in comparison to other competing devices on other mobile carriers, the most recently updated Sprint Playbook also mentioned the yet-unannounced, nay unconfirmed but rumored, HTC Holiday bound for AT&T–and even pegged a release date for it.

The HTC Holiday appeared on a comparison table said to be from the Sprint Playbook. A tipster sent several pages of the Sprint Playbook to Android Central.

According to the comparison table, the HTC Holiday is set for release some time this month.

The table shows specs and features of Sprint’s own Samsung Epic 4G Touch, the carrier’s newly launched variant of the Samsung Galaxy S II, compared to specs and features of the AT&T-bound HTC Holiday, AT&T’s Samsung Infuse 4G, Verizon’s Motorola DROID Bionic, and T-Mobile’s HTC Sensation 4G.

The comparison table shows the devices to be similarly spec’d, with Sprint’s Samsung Epic 4G Touch besting the others with a 2-megapixel secondary camera and MHL support where others only had HDMI.

It is not clear whether Sprint had insider information about the HTC Holiday or whether Sprint based its profile of the HTC Holiday on leaked information, especially the HTC Holiday prototype that has been providing several details of the upcoming superphone.

If anything, Sprint is acknowledging the HTC Holiday’s yet-unrealized potential to beat its Samsung Epic 4G Touch.

As to why the Sprint Playbook chose to exclude T-Mobile’s and AT&T’s variants of the Samsung Galaxy S II on the comparison table–beats me.

How’s that for second-guessing a rumored competitor?

Image credit: Android Central