I'm up to a little over 6000. There is no cap, but there are ratios between the number you can follow and the number of followers you have. Apparently it's different from person to person. I have to keep the number I follow within about 500 or so of the number of followers I have.
I am up to 1700 with 20-50 joining daily I joined a viral program so when someone clicks on follow me on twitter they auto follow me and are placed in the viral system. I am just trying it out pretty happy so far. One thing that hellped was a follow back directory if you follow them they follow you you can find it here http://www.ifollowback.com/index.php it is kinda new, but I like the idea.
I have 2 followers to my Twitter account which I don't use very much. The Twitter account is for my black hat plans / methods and my future plans / methods that are in the makings but I guess people aren't that interested till I start making really good fortunes with it.
1907 followers and 2183 updates and following 2000......for now...obviously this will increase as time goes by
1,351 people - no bots, real people. Trying to get a sh*t load of followers is kind of lame. That's not the purpose of Twitter!
Just started twitter a week ago and I have over 2000 people. Only 5 are actually following me. Yeah Baby!