The 100 maximum is based upon algorithm.
Each ap holds 100keys, tkip uses 4 keys per client and aes uses 1key thus 100 limit.
With 802.11g bandwidth is an issue if you try to get 100clients connect to one ap
the ap is more than able to handle this client number but of course you are stuffed for bandwidth. If it is a dense deployment u are looking for I highly recommend the dual band aps.
Sorry for spelling and grammar using the iPhone.
Remember net-ctrl will are a solutions company. No box shifting simple great project managment and support.
senior wireless engineer
^ Cheers or that. I thought as much but you never know, they could have had some magic jiggery pockery going on.