hmm... interesting thread, thanks guys!
I've been on the brink of ordering a Sawyer mini, but this thread is making me step back and have another think. In New Zealand my friend and I used his Katadyne Pocket filter which was great, but somewhat cumbersome to carry "just in case". In regions where it would be used regularly it's a great solution.

To buy or not to buy my own Katadyn, that is the question...