I have noticed a change in the Type ahead function that I think happened with the 9.0.1 upgrade? Type ahead used to look up users in available address books but it also cross referenced my Inbox and as a result the first suggestion would be people I commonly contacted via mail or ST etc. For example if I typed Paul it would show someone with the first name Paul who I contacted regularly via Notes which is very helpful as it allows you to quickly find people. For some reason this has stopped, and now it just lists the first 20 Paul's making it much slower to contact people or send emails etc.
can someone confirm what I have observed, I was impressed by the function but now miss it a great deal. I work for IBM and being a large company this was an extremely useful feature.