If you're deciding between the Mogul and HTC Vogue (for Sprint), wait until the Vogue comes out sometime in October unless you need a hardware keyboard and/or infrared and/or LED flash. Otherwise they're identical in processors and memory.
The Vogue, however, unlike the Mogul has built-in GPS (NMEA 0183 , 20 channels). Even with Rev A being rolled out soon I don't think the Mogul will have internal GPS capabilities. Also the Vogue appears to come with only 1150 mAh battery? I wonder how that's going to fair out.
For more information check out this link:
http://pdadb.net/index.php?m=pdacomp...d1=803&id2=771