I dont think a different kernal is going to give us and others 6+ hours.
I am just hoping with an update, Nokia can fix whatever is draining our batteries so much.

One hour of IM chat on gtalk drains my battery by:30-40%
One hour of phone convo drains my battery by about 40%.

I've also read in posts here people getting great battery life. Remains a mystery as between us we have three handsets which all behaved the same way. If i changed my kernel then il be paranoid that the low battery is because of the processor over working itself. This way I know i havent done anything.