QUOTE(Ivan113 @ Dec 1 2011, 10:19 PM)
but there is no video recording right? other than that, can list down the disadvantage of current ICS port?

Build 4 is out an hour ago:
http://forum.xda-developers.com/showthread.php?t=1363593Known IssuesThe UI is a little bit laggy (due to lack of hardware composition).
Video recording does not work.
Video playback is not hardware-accelerated.
The front camera produces distorted preview.
Photo taking does not work with the front camera.
Some camera options FC. (The camera is a temporary hack, when the Nexus S ICS source is released, there will be a proper fix.)
Movie Studio does not work.
FM Radio does not work.
USB Tethering on Windows requires the user go to to driver update and manually select the RNDIS driver.
Can select widget on launcher without being on the widget screen *
Persistent "Removed SD card" message on external sd card removal.
Download icon gets stuck in phone signal.
Phone unnecessarily gets data connection on device encryption password enter screen.
WiFi automatically turns on after quitting airplane mode if WiFi was used during airplane mode.
WiFi DNS does not update properly (unverified)
Data Roaming is enabled by default
Alarm Icon does not come up on boot (unverified)
Screen appearing for a split second after screen off animation