I had some jump drives that weren't recognized on some computers using NTFS. So I had to reformat them to FAT32 to work with home, school, and work computers.
NTFS is more efficient ... however at 8gb, unless you have a lot of small files on it you won't really lose a lot of space to the inefficiency of FAT32 ... and (IMHO) the multiple platform compatability for FAT32 easily makes up for the inefficiency when you consider the places and times that NTFS can't (or won't) be readable by a system.
Umm as much as I like Linux there ARE other OS's out there. Fat32 allows MAC and Windows machines to share files and is of course recognized by Linux as well.
You can get a \"driver\" For ext2 and ext3 for windows, but not everyone's computers will have that, so go for FAT32. It's what I format all my flash storage with.