I wish I knew how to asnwer this question! The honest answer is:
~Permanent gang: Allen, Pouncer, Harry, Abby
~Long term foster who may never leave: Minette (aka, Miss GrumpyButt)
~Fosters who have stolen my heart and won't be available for adoption til after they recover from their leg surgeries: Flutter and Angeleyes. The longer they are here, the higher the chances are they won't be leaving

So.... depending on your math, and who you're counting, its 4 cats, 5 cats, 6 cats, or 7 cats. Keep checking in for updates and their status!