A disk manager already exists, but it would be nice to have a tool for drive mounting and management.
Old Ubuntus had one (iirc until 5.04) but it was removed and never came back.
That tool (it would be nice if it is opened when a new drive is installed) would be a great addition for newcomers.
Finally, just a little note about your final comment: it's quite harsh and unpollite to ask it that way. That kind of comments won't make developers work faster. It may even piss them off and make them reply something like "if it's not so hard, then DO IT YOURSELF"
A UI for mkfs would make it easier. Also, if you have HPFS/NTFS/FAT32 drives, it should pick up and allow re-formatting of non-ext file systems. Especially for removable USB drives to make them compatible between systems (not everyone has admin access on windows to install ext compatibility layers/drivers)
While GParted is an awesome, and powerful program it isn't installed by default. Making simple tasks like formating a USB key cumbersome.
While a partition / mount manager similar to Mandriva's would be very nice. The inclusion of gparted by default during an install would be a massive step forward.
Edit fstab
partition & label
notify when disks reach a critical point(too full)
find new disk(s) after a reboot & guide the user to work with it(them).
allow a EASY way to change the FSCK timing.
I have proposed a utility similar to Mac OS's Disk Utility--It includes several functions that gparted could easily have---What is needed is gparted on steroids....
autocrosser: Yes! There we have what we are searching for! :)
OS X "Disk Utility" is perfect. It's easy to use, but it does also have some advanced options.