You could definitely get it down to 29lbs, perhaps more. My mega weighs 32 lbs. Gonna swap to a Deville fork (having said that travel adjust is really useful)...there goes 500 grams....tioga saddle....there goes another 100 grams...kcnc seatpost...there goes another 100 grams off my build...R1 brakes...there goes 240 grams...
etc
If I wanted to go nut's I could then save a lb by chaging my slx groupset.
I decided early on I'd rather pay less money for the frame and more money on parts. Why? Suspension performance, unsprung weight savings and mass centralization. The people telling you that you should buy a lighter frame are ill informed, if you are on a budget and can get a heavier cheaper frame but light and strong wheels or a lighter frame and heavier cheaper wheels then purchasing the lighter frame is IMO the wrong choice.
Lastly geometry comes is very important, not many bikes have geometry that are as suited to pointing downhill as the Mega (that inclues Ibis Mojo hD's, Nomads, Yetis, Orange 5s). The geometry is really rather different to a lot of bikes and in the Mega's case it works wonderfully. If you are an XC weight weenie though it is definitely a downhillers play/all day bike and not a trail bike....it's for those DHers who want to explore places that don't have uplifts.
Having said that it pedals well for a single pivot and feels lighter than it is when climbing....I caught some cyclocrossers on it round a trail about a week ago. I can easily ride it on 30-40km rides.