[colug-432] MicroSD cards: exFAT or ext?

[Scott Merrill]

I have a PogoPlug which I use primarily as an ssh end point for screen
+ IRC.  It's also a decent little test bed for projects on which I
might be working.

I currently have a traditional external USB HDD (read: rotational
media) attached to this. The use case for this system doesn't merit a
solid state hard drive, but I could use USB sticks or SD cards to
avoid physical wear and tear.

I've been considering buying a couple 64GB class 10 microSD cards.
I've read some interesting things about SDXC cards, though.
  http://en.wikipedia.org/wiki/MicroSD#File_system
See the "Risks of reformatting" section.

I'm curious if any folks here can share personal experiences with
reformatting SDXC cards to use native Linux filesystems?  How's the
performance? The longevity?

Alternately, can folks report success or failure using the exfat-fuse
libraries to access exFAT formatted partitions?

Thanks!
Scott