On my T8585 it doesn't work. I had tried many ROMs(TMOUS based and TMOUS stock) and with every single one phone is stuck(completely frozen - only battery removing or soft reset helps) on Launching HTC Sense. All that with 2.08 or 1.66 HSPL and 2.xx.50 radios. If I flash 2.xx.51 radio, phone is able to boot and start Sense but after receiving or making a call the phone is frozen again. But, with 2.xx.51 I can disable HTC Sense. Then I flash back .50 radio. Phone can then work with that radio without Sense but is very unstable and can be frozen at any time. Tried the same scenario with and withouth SD card - no difference.
Tried also latest test ROMs, 3.01 and 3.02 WWE, and 3.04 all watermarked. With any HSPL(1.66,1.43 or 2.08) in hardware information is stated 576MB of RAM, but on SD Card&Phone Storage Settings there is only about 200MB Total program(it should be 448MB). After flashing full test ROM(with new SPL 3.02 - flashed with gold card) memory settings are usual for any standard LEO regardless or flashed radio.