This supposedly applies to Cubieboard 1 & 2 as well, but I don't have a C1 and have not tested on my C2.
Instructions are at:
https://fedoraproject.org/wiki/Architectures/ARM/F21/InstallationEven though they say F21, it works as well for F22.
Images are at:
http://koji.fedoraproject.org/koji/tasks?state=all&view=tree&method=appliance&order=-idDownload the latest image with the UI of your choice then use the installer available from the Installation page. I use Xfce.
I did my latest install without a serial console. You just have to wait a couple minutes before the config screen comes up. I would like more progress (which you would see on the serial console). I tried not using the serial console with this latest install, as if you have a serial console, you get the serial configurator, not the graphical one.
Password requirements by the installer are draconian. This is being debated on a number of devel lists. Old strong passwords are coming up 'weak'. If your favourite password is now weak, try Fedora_Project123, then change it later with passwd which is unchanged.
USB keyboard and mouse are supported. Directly to the CT or via a USB hub. I am currently using VGA video through my KVM, but I have tested HDMI.
Ethernet works, and with a consistent MAC addr (they finally figured out where to steal some bits to construct a MAC for the CT). WiFi, BT, IR, are all 'future'. Sigh.
NAND is not supported. Yet. Do not try and move the uboot to NAND; I have been told it just won't work. Yet. You can put all partitions on a sata drive with only the uboot on an SD card (just look at the installer script to figure out how to put just the uboot on the SD card. Uboot will switch to the sata if there are no partitions on the SD. Eventually, we will be able to have uboot on NAND and all partitions on sata, freeing up the SD slot.
The main point here is that this is mainline Fedora. Not a remix. Once installed you can do your regular yum updates (or the new updater if you are braver than me). Fedora 22's goal is to ship in June. What will make the cut from the 'not yet' list is yet to be seen.

'
Oh, there is also a sata multiplexer card out that will let you put 4 sata drives on your CT. Fully supported in the current uboot/kernel.
I will add here as new functions come on line.