At least early on (in fact, before we knew it was going to be called Pandora), one of the main aims was user-friendliness without getting in the way of advanced tasks.
How much that has stayed as an aim through the changes in the rest of the project (i.e. from ~£120 but only slightly more powerful than a GP2x to £200 and the be all and end all of open handhelds), I don't know.
What we do know is that you will be able (unlike the GP32 and GP2x) to install programs for Pandora from the actual device via wifi, which, if done right, could make for a pretty newbie friendly experience for homebrew and apps.
Emulators, of course, are likely to be more complex, since obviously the roms for them can't be on the archive (that would be illegal), and including a built in installer for them might be seen as making emulation one of the aims of Pandora, which, obviously, cannot be the case for legal reasons.
All in all, it'll probably be just a bit more friendly than the GP2x and the GP32 were - i.e. if you read the files that tell you to read them (usually named readme.txt or similar) then you'll be fine.