Only just released, the Samsung Infuse 4G appears poised to see a very serious competitor from the device codenamed HTC Holiday. Confirmed through a leaked ROM to be another giant 4.5-inch handset for AT&T, Holiday aims to best Infuse in both the processor and resolution departments, offering up a 1.2GHz dual-core MSM8660 chipset from Qualcomm as well as a qHD (540×960) display. Coupled with 1GB of RAM, dual eight-megapixel and 1.3-megapixel cameras (rear and front-facing, respectively), and running Android 2.3.4 Gingerbread, Holiday promises to be a beast of a device well-positioned to compete against other upcoming HTC flagships on rival carriers (namely EVO 3D on Sprint and Sensation 4G on T-Mobile).
Connectivity-wise, Bluetooth 3.0 and Wi-Fi 802.11b/g/n have been tipped. No word either way on LTE-compatibility here; check back later as we might have more information to share in that regard.