Picked up my 06 X5 4.4i with Nav about a month ago. Loved my ipod in my E39 540i using icelink plus with text to MID, so I gave Tom at EAS a call to get me hooked up for the X5.
He suggested the Dice was the way to go and that the Icelink was too buggy and now discontinued, replaced by the much better Dice. I was excited.
Tom is a great guy to deal with, we need more people like this out there, so I place my trust and order with him.

Received the Dice a few days ago and but have been severely disappointed to say the least.

Relevant info:
2006 X5 4.4i with Nav & bluetooth, analog DSP
Ipod: 3G fw:v2.1
Dice

The Dice has been extremely buggy and unreliable. It seems to have a mind of it's own.
Sort of goes like this:
Start car, playing mp3 fine, drive. Turn the car off come back 15 minutes later, start car it's on FM. Change mode to CD changer, it's back to the Dice but initializing wait. Have to press CD6/track6 to get text back onto Nav again it was gone.

Turn off car. Get some lunch come back to the car. It's still on Dice but PAUSED. No way to play so press-> skips to next track. Noticed text on Nav is gone again. Press CD6/trk6.
Cell phone rings, handsfree bluetooth answer, headunit auto mutes, finish up phone convo and hangup, expect Dice to resume. Nothing, no music. Press R/T says PAUSED. Press -> skips to next track. Woops nav text is gone again says CD22 instead. Next phone call, end convo, woops it's back to FM.

Anyways I won't bore you with the rest, but you get the idea. This thing is not stable at least not on my brand new X5. Not happy at all.