Great on China Mobile
This one is great (I flashed the old ROM), improvement other then better browser and smoothness that I see are:
1) Email able to accept/decline meeting invitations, yeah! I no longer need Roadsync nor Touchdown now.
2) It automatically configures both GPRS/EDGE and MMS for my China Mobile SIM card.
3) I used to not be able to receive calls when on EDGE data, so I was considering switching to China Unicomm which has WCDMA, now it appears I can receive calls with EDGE.
Others to report:
1) I had to flash dbdata.rfs after flashing the ROM for the phone to boot. I was flashing from JK5. (which was flashed originally from JJ3, to JJ5, to JK5)
2) Since I used to need Roadsync or Touchdown, it appeared (my guess) my com.android.phone would crash with a huge phone book everytime I receive a call, now that I only connect with my Mail2Web professional exchange with one phone book only, the problem doesn't seem to happen anymore. (I dont' sync with Google. I use Plaxo on the server side to sync with Google, then Plaxo syncs with my desktop Outlook, then desktop Outlook syncs with Mail2Web exchange server, then Mail2Web exchange server syncs with Glaxy Tab.)
3) I also used Superoneclick to root the phone, however, the Enable Market feature didn't seem to work. I had to install Market Enabler after rooting, clear the data in Market, then I can finally download 'Kindle for Android'. Now I am home free!
I am at the moment, happy. Before this, I was considering selling the Glaxy Tab (I gave my iPad 3G to my son already!)
Thank you!