For those of you confused.

[inspironwins]

Kalashnikov wrote:How will the inventories be delt with between worlds? If I go mine 100 diamonds in the temp 1.7.2, will my inv be cleared when craftbukkit 1.7.2 comes out? Or, worse, will my 1.6.4 inventory be cleared?

Inventory information is stored in each world folder, however when we import the world through multiverse, who knows what it will do with your inventory. To be safe store all your valuables in a chest before craftbukkit is released.