I have had some minutes with an SG3, and I have to say the experience was horrible. I had to set up accounts for a non-tech user, so you could say I had to see the innards in order for it to function properly.
It is smooth, more smooth than any Android I have used, but the UI is so lacking. It's like the guides does not know what page is coming next. When an error occurred, there would be describing text, lasting for a whopping 1.2 seconds, before getting thrown out of the process. Maybe the marketing genius who makes these ads should follow up on the UI department, to further improve their next big thing? And what is up with all the fuzz on widgets? A clock? Weather? Right in your face? Look out the window for crying out loud!
Also, transfering contacts via Bluetooth from a Nokia was like eating chilli in hell. It didn't support full list transfer, so you had to do one by one contact to transfer. SyncML only syncs one way apparently.
Rubbish phone in my mind.