I like this... a lot!The HR44 receives IR & RF at the same time - a big win for slingbox users.
I was told that the guts inside the box are basically the same size as the HR34, but they were able to shrink the size of it down by removing the power supply and making the power supply external.
I was also told the reason why DIRECTV will not let you have 2 HR34's or 44's (or a mix) is due to the fact that you would need a new switch, and the cost of changing the switch to a SWM 16 or 32 is too high.