The DreamLink T1 and MAG boxes both support timeshifting, but I tried last night and it doesn't appear that IPTV66 offers this service yet.
The DreamLink T1 Plus (soon to be released) offers a client-side PVR solition (ie you plug in a USB drive to your dreamlink and can record a channel locally) but I'm hoping IPTV66 has plans to offer the timeshifting "pvr-in-the-cloud" option.
Thanks again!