YES !!!!!
5 Hosts upgraded to 7.x before i caught this. It has been a nightmare!!! Booting from usb/sd/etc was ESXi's strong point. If this isnt fixed, we'll be considering other alternatives.
I have 4 hacks now: Logs, Scratch, swap and the new one, RamDiskTools. I have also started moving to U3 high endurance sd in hopes the patch gets done!!!!!!!
ps...there is a World filled with Hosts booting sd and/or usb.