The iCamSource program does need to be running on your computer in order for iCam on your iPhone to connect to it, even for Wi-Fi cameras. This is due to the firewall/NAT piercing techniques used by iCam. Also, the motion detection features of iCam (push notifications and motion recording) require iCamSource to be running in order to perform the motion detection processing.
Any Wi-Fi or Ethernet camera that iCamSource can connect to should be viewable through Safari as well, since Safari is able to display the same MJPEG data that iCamSource uses. iCamSource adds the functionality of piercing the firewall/router and motion detection (notifications and recording).
