This will be worth the upgrade.
These are some very good developments. Its almost scary how much the PSP scene relies on Dark_AleX & team. His custom firmwares, especially due to the PSX emulation built in is one of the main driving forces of the homebrew scene right now.
Again, I don't see why people are so concerned with custom XMB. I use 3.10 OE-A' and prefer that over 3.03 OE.
You must also consider that a lot of changes and updates are unseen. Built into the code. Look at how many changes there are when a new version of daedalus or other emulators are released. The same goes for the POPS emu from SONY.
I am very curious as to Dark_AleX's **bonus** he has planned. Usually Dark_AleX likes to give us a little something extra. Its still unclear if the "bonus" is something on top of the regular 3.30 changes or if its some of the 3.30 changes that are not fully working yet on an OE setup.
I guess we will know more in a couple days.
Thanks for the hard work and dedication Dark_AleX!