What I like:
Tabbed IM sessions (vertical or horizontal)
Open another chat within the current IM Session
Auto Status Changes(if you lock your PC auto away, etc)
More features with the "Screenshot Capture"
Transfer files(mp3's,docs,etc)
Ability to prevent save of chat window session
What I don't like:
The message to show you have new IM's will stay in your toolbar after you have opened the IM.
Meetings are still kind of slow loading.
Overall I think Sametime 7.5.1,which will come default with Notes 8 will get a lot of praise from users. It is not perfect, but a big step for IBM.
