Okay, a little update here.
I started up iCam with a different login/password combination and entered this into my i-devices. Here's where it gets interesting;
1. It started to work.
2. on an iPhone 4 it initially showed six tiled camera windows even though there are only three cameras in use.
3. After a few seconds it kicked another "source" error but then after refresh it was back to the four camera tiled view with my three cameras showing.
So, I think I more or less proved my point, there's something hosed up in iCam broker right now. Maybe he needs a reboot?