Barely. Bitcoin Core 0.10 will probably handle the low resources of the rPi better than previous versions (the 0.10 release candidate uses less memory and cpu in my experience toying with it), but for that you still need:
- Armory that is compatitble with headers-first block storage (version 0.93 apparently)
- Armory that can build it's DB from a device running bitcoin core at a network location that's different to where Armory's running (not sure when that's scheuled, but Armory devs have expressed interest in the past)
- An Arm build of Bitcoin Core (there's no official builds for Bitcoin Core atm)
0.9.x will run on the Pi, but it can become really unresponsive, really easily. And it's pretty much unusable becasue of it, although you can "improve" matters a little by increasing the size of the swapfile on the Pi (which, of course, removes more precious space from your SD card that is already a bit strectched for space, what with all that blockchain on it...)
Edit: maybe I misread your question, but if you want Armory and Bitcoin Core online on the Pi, then that probably won't happen before the Pi is near enough obsolete.
