London Cyclist reviewed the Tough Waterproof Case and Bicycle Handlebar Mount for Apple iPhone 4. The review doesn’t compare the mount against others London Cyclist has reviewed, but based on the review, I’d say the Tiagra mount (also reviewed on London Cyclist) is the better choice. Oops, just realized this is a review from last year. Oh… well, this is a good read if you’re interested in mounting your iPhone to your bike’s handlebar. London Cyclist on other iPhone bike mounts.