Confession: I don't use CloudApp. It's one of those things that I think is absolutely brilliant, but is ultimately just one more thing, and I never found time nor place for it. Until Cloudier.
Developed by Jackie Tran and Benjamin Mayo, Cloudier takes the web-bound CloudApp service and brings it, beautifully, elegantly to your iPhone. While that might not sound like much, given how many terrible web front ends we've suffered through in mobile, rest assured it's a tremendous achievement.