The HTC Holiday may soon join the Infuse 4G as AT&T’s second smartphone with a 4.5-inch display. According to information obtained by 911Sniper, the Holiday will offer a spec sheet that could put the Samsung GALAXY S II to shame. The Holiday will supposedly pack a 1.2GHz dual-core Qualcomm MSM8660 processor, the large aforementioned 4.5-inch screen with a 960 x 540 qHD resolution, 1GB of RAM, Android 2.3.4, and an 8-megapixel camera. We’re also hoping HTC includes its latest Sense user interface, which we most recently saw on the HTC Sensation. Unfortunately there isn’t any information about a possible launch date just yet, but we wouldn’t be surprised to see this sport a “4G” tag on it, also.