i'm home.. the Xperia Arc is pretty good but the battery life
when using the apps is lousy... mostly because of the screen...
the batt thing in there said that 70% of the power used is to
power the Sony Bravia screen 
also in other news, the thing is so new none of the ahbeng shops
have accessories for it... i'll be going to the sony shop to look
for a spare batt
I believe that's a common problem with many new smartphones....
battery capacity just hasn't kept up with cellphone technology.
I can still remember how I could bring a monochrome display
handphone to camp and have it go for an entire week before it
needed recharging.
Now, I bought another USB cable for my HTC Desire just so that I
can charge it up while I'm working.