And I love how secured the connectors are on my iPhone. You can remove it unless you press the button on each side and even then, you need a bit of strength or effort to take it off. It's "nakaw" or "hablot" proof. :)
No worries with regular iPhone casings, Simplism DockStrap and DockCarabiner fits most kinds. :)
Where to buy Simplism DockStrap and DockCarabiner:
Switch, Digital Hub, iStudio, Digital Walker, Beyond the Box, Power Mac Center, iCenter, E-Central, Power Hub, Sidrah, 8Telcom, Gui, The Inbox Store, Technoholics.