I think you might be talking about the Sony one that Dino (cookiemonster) has. It uses Sony S-Master digital amplification. If I remember it's the Sony CMTCPX1. I've seen them for sale in FNAC (Chiado).
I haven't heard it but sideshowbob reckons it sounded amazing. I don't think it's that much smaller than the Denon one though.
She was arriving home, so, before she entered the room, we set the Sony on a coffee table in front of the AV, and played Bob Dylan Slow train comming SACD, BT...
Then we asked if she liked the sound of the AV with Michael's Eupens, she said it sounds great, we had trouble convincing her it was the mini, wich she imediately took to her room, before anyone had any ideas...