what will happen to Sense, TouchWiz, etc....

No you can't (without a Dongle) as YES 4G is based on Wimax, not LTE technology

Just install 3rd party messanger if you need it. Google+ Messnger is the default app in Galaxy Nexus (From 4.0.X onwards) it comes in bundle.

Really? When will they release Gnote with Wimax?

Talk is more like Internet Dailing/Text chat and so on xD
I guess now Google+ is more appealing since Galaxy Nexus could hangout with 9 person for video chat.

this is always frequent ask question. u should ask yourself, nobody able to give you final answer.
u want to own it and enjoy right now, go cash n carry AP set now if stock available. 
if you can wait, then get official release.

i can see most of the manufacturer like samsung put task managers in their customization of android in their devices.. but clearly it is not needed in android..

if we force close running program in Setting - Apps will harm the system? some apps automatically running in the background after fresh start up.

i'd prefer to wait for the 1.5Ghz version  ..ok 32gb plus 1.5GHz 

DG Smartplan 48 : (RM48 * 12) + RM1749 =  RM2325
rm50 is when u register, u pay in advance + first month fee of rm48. so mean when u first register, u need to pay rm 1749 + RM 50 + RM 48

first month bill when come, u don have to pay already unless u got use to call or sms.
then 2nd month bill come, lets say u no call no sms, then rm50-rm48 , u still got rm2 with digi for next bill..

actually simple way is u pay for 2 months monthly fee first when u register..

Arghh, kena poisoned gao gao dy! Btw, the GNex offered by Digi is 32gb or 16gb???

but i've sent an enquiry to directD  (last week) and he quoted me for 32GB ori and AP sets....can anybody confirm that they really have stocks for them?

Two things I do not like about the G Nexus:

1. Vol tones too soft for speakers ( ringtones and other media playback)  - is even worse than my SGS II and present Galaxy Note. Install Vol + but not much improvement
2. The vol up/down button is located too way near the mid section - it should be at least 1 cm higher up. So many ocassions while holding the phone, always accidentally press it and many times while I just want to switch off the phone - it boots into fastboot mode as accidentally fingers press on it while pressing power button