Hey, I got Timbuk2 "2way" pouch: http://www.timbuk2.com/tb2/products/accessories/2way It's not iPhone specific accessory, but it worked quite well for me (probably not for everyone, see below) so I wanted to drop a quick photo report. The case is well made as you'd expect from Timbuk2. Soft lining interior and ballistic nylon exterior. M size works perfectly with iPhone 4 + Bumper. I'd imagine it would work well with other slim profile cases. One potential problem for some people would be the lack of cut-out for headphone cable unlike their older pouch that I had many years ago. This means you can't close the 2way with typical headphones attached unless you have very low profile L shaped connector. I use Bluetooth headphones almost exclusively so this is perfect for me. The 2way is sold for $20 or maybe less if you find one on sale. There is a pocket in front of main compartment. Probably you can put a plastic panel or something for extra screen protection. There isn't room for straight headphone cable. Good size for i4 + Bumper. It won't easily fall of even when you flip it upside down, yet easy to take out. You can wrap it around shoulder strap of backpack or messenger bag. Also mountable through a belt as well. Hope this helps someone.