I hope that update is for SGS and not SGS II.

any help for battery draining? my display 51% android os 22% android system 5%..why so high? 10 hours plus only without charging..from 100% drop to 15% =.="

So is my phone defective I ask?  Physical damage I don't see any .  Hardware wise there is no denying SGS is great with its beautiful Super AMOLED screen but oversaturated and inaccurate colors. 

Regarding my GPS, I manage to get my GPS working in Froyo but since I switch to Gb, it have no luck getting any lock on.  So is my GPS hardware broken?  If it is, then why does it work in froyo 2.2.1? 

So my SGS can do all the tweaks imaginable and I like that. 

But imagine I got a very important appointment tomorrow which i cannot miss.  So before I go to bed, i must remember to set my alarm.  Alarm I set but it never ring the next day!  Why because my SGS was out of juice when I was deep asleep, but how can that be?  I have a 50% charge left when I go to bed.  So I miss the appointment and can only live to regret it.

Then I charge my phone  night before so i have a full charge the next day.  Brought my lovely wife and kids out for shopping and movies etc.  Was expecting a very important call from an oversea client.  It was 3 pm in the afternoon and I hardly use my phone but it only got 10% juice left.  But I am expecting a call from my client and he hasn't call yet.  So I cut short my family outing and head back home to charge my bat?  Home is a least 90 minutes in this heavy traffic so do I have enough juice left?

The moral of this story is that we can do whatever tweak we can on our SGS but at the end of the day, it has to do what it is suppose to do.  And not give us any hustle doing it.  I just want a peace of mind.

Now I know what iphone user meant by "It Just Work"