[UPDATE]
Apparently more cut content has been found:
Chapter 3, 4
I Wanna Go to Tokyo pt. 1
The Brewer's Treasure
Make the No. 1 Cabaret Club Girl!
English Conversation Solicitor step 1
English Conversation Solicitor step 2
Love's Cupid
Love's Cupid Continues
Love's Cupid Continues Again
A Trip Before Marriage
Chapter 5
Manga Artist Debut (Mangaka Debut)
The Runaway Phone Chat Girl (Terekura Iede Musume)
I Wanna Go to Tokyo pt. 2
Great Genius Showdown
Is she talking about me...?
Ayukawa Rina***
***You cannot date her. In the RGG3 you can date 10 girls, for whatever reason 1 of them didn't make it overseas.
Chapter 6
No cuts (!!!!!!)
+ Cigarette HEAT Action
Source: http://forums.sega.com/showthread.php?t=319876 and http://forums.sega.com/showthread.php?t=319899
For more info about previous known cuts - http://en.wikipedia.org/wiki/Yakuza_3 and news article relating to this: http://kotaku.com/5491650/
This is getting more depressing, still waiting for my copy but it feels I have paid full price for a demo instead 
and I be expecting more cuts through till the final 12th chapter.
EDIT: Apparently the Cigarette HEAT Action is still there but compared with the Japanese version less magazines can be read in the convenience stores.
