I'm under no doubt whatsoever that if the NSA show up and grab all my hardware, and wave their $5 wrench menacingly, I'll give them all the keys/passphrases they ask for.
I'm "sure enough" though, that they can't read my EncFS/GPG/TrueCrypt protected data without me knowing about it. Not even the data synced to Dropbox/GoogleDrive/Jottacloud.
True enough, but we could also implement a duress code which would wipe data of your choosing and unlock the rest. There has also been some research into learned passwords (passwords which you dont consciously know, but rather exist in a mannerism of yours. e.g. the path your eyes take when trying to read some lines of code). That aside, no solution today protects against this including your truecrypt partition.
> I'm "sure enough" though, that they can't read my EncFS/GPG/TrueCrypt protected data without me knowing about it.
If they plant malware on your computer (without you knowing about it) would you still be so sure?
will it work on every device out there?
Not yet. We are a couple of months away from an alpha.
> will it work on every device out there?
It currently builds for Windows, Mac, and Ubuntu but we will expand this in the future to include Andriod and iOS.