Do I REALLY have to Odin back to stock?

Does this ROM have Exchange Support?

Yes, Although not by defualt. You need to install the Samsung e-mail app from the Kitchen.

Why do the bottom lights stay on after a text/email/notification?

This is a feature called BLN (Back Light Notification) it can be disabled by downloading the BLN Control app from the market or turning it off in CWM Recovery.

What are some of Serendipity's benchmark results?

To be honest we don't care. We aim to provide a smooth stable ROM for everyday use.

How can I reduce my Wifi power consumption?

The Wifi sleep policy is preferably set to "When screen turns off" or "Never when plugged in".

Rom Manager.

Never use ROM Manager. EVER, EVER, EVER, EVER, EVER.