It sounds like the OpenSPOT may not be connected to your iPhone's wifi in the first place. (This has happened to me a few times, with the OpenSPOT 2, 4, and once with the M1KE.)
- If your phone's "name" hasn't been changed since you set it up, it will probably have a name like "Dennis's iPhone". In most cases, the apostrophe between your name and the "s" will actually be a "typographer quote", which most keyboards (including the M1KE's on-screen keyboard) have no way to type. Life will be easier if you change your phone's name to something which doesn't have these quotes in it. As an example, mine is "KG4ZOW iPhone". (Settings -> General -> About -> Name)
- You may need to have the (Settings -> Personal Hotspot) screen up on the phone before the OpenSPOT (or anything else) will be able to connect to it. On this screen, turn on the "Allow Others to Join" and "Maximize Compatibility" settings. (Be sure to turn off the "Allow Others to Join" setting when you don't need it, both to save your phone's battery and for security.)
- You should see the green "linked rings" logo at the top of the screen when something is connected to the phone's wifi. The phone won't show you any information about what devices are connected, but if nothing was connected before you turn the OpenSPOT on, and then the green linked rings show up while the OpenSPOT is trying to connect, there's a pretty good chance the OpenSPOT is what connected.
Another thing I found useful is to put your home network after the phone's network in the OpenSPOT's list of networks. This way it will still connect to your home network when the phone's wifi is turned off, but you'll be able to test the OpenSPOT connecting to your phone without having to physically leave the house. (It will also connect to the phone's wifi a few seconds sooner.)
On a related note ... on the M1KE, when you manually enter a wifi network and password using the on-screen keyboard, it will overwrite whatever is in wifi network #1. On my M1KE I have my phone's network in #1 and #2, another hotspot device in #3, and my home network in #4. This way I don't need to re-enter my phone's network info after connecting to a temporary network (at a coffee shop or whatever).
Good luck.