Hello.

Basically, I'm a noob & I've recently bought an N9 after owning N900 for a year or so...& I can tell u that I'm confused. Two devices r very similar, but very different in many aspects.
So, my questions r:

Can I free up rootfs on N9 via x term (I've deleted unnecessary and old stuff on N900 with this command: ''dpkg -l | grep ^rc | cut -d " " -f 3 | xargs dpkg --purge'') and how can I delete user guide and RSS feeds?

p.s. Sorry 4 opening new thread & tnx in advance

Your rootfs partition is 4GB on the N9 so its not really essential to do that as in the N900...

See N9QTweak for most tweaks including uninstallation of pre-loaded apps...

Is there any other useful apps that u can recommend (something like drop cache - whitch I have installed)?

Start with N9QTweak; it has many tweaks and mods for your system and it comes with a nice PDF/Wiki as a guide...

Other than that search around there have been threads before for quality apps as there are quite a number for me to list