Hey folks, with the minor exception of visual voicemail, my iPhone is now 100% functional here in Trinidad and Tobago!

I upgraded my operating system on my PowerBook from a fierce Tiger to a roaring Leopard on the 10.5.1. The leopard experience is great but something 'mystical' happened. I know it happened during a sync because I didn't do anything special with Betty (my iPhone's name).
All I know was that while I was connected via wifi to Sheila (my PowerBook's name) running diagnostics on another iPhone, my phone vibrated and chimed so beautifully- alerting me that I was getting email. I also realized that Betty's IP address had changed. I mean, this was weird. I am not talking about the 256.xx.x.xx IPs that change everytime the iPhone connects to an adhoc network. I'm talking about the static 10.x.x.xx IP addresses.
Not only that, but as a bonus, I downgraded to 1.1.1 and re-updated to 1.1.2 yesterday and now my volume output has increased exponentially! I was totally taken aback. I have downgraded to 1.1.1 and re-updated so much times it gone out of style




! LOL

And I never had any problems doing it. Not forgetting to mention that no matter how much times I had done it, the volume remained the same despite following volume hacks posted in other forums on this site. Now, my volume is so loud, I have to turn on the volume leveling feature in the iPod section on the Settings IN ADDITION TO locking the iPod's maximum volume to one that is lower than the maximum. My earbuds felt like they wanted to burst at only 1/3 the iPod volume! Phone calls are substantially louder and the volume on my Jawbone bluetooth headset is sweet! I eh go lie people, I am excited. Cause now I want to see how this translates to use with the V-MODA VIBE Duo with Control-Playback that I'm collecting on Wednesday. I would have posted the plist files for you all but the thing is the values in the strings are the same as the ones from 1.0.2 so I honestly do not know where in the phone the increase is coming from. That and thanks to a post from bezman on his blog and some software by Shivanand, my Betty now tells me where in Trinidad and Tobago calls are coming from and where I'm calling (once the number is not saved to a contact in the Address Book.
Anyways, I just want to express my gratitude to everyone including poetic_folly for the time you guys took to offer advice and I am thankful that I was able to help out the few or many that I did. (Oh gorm man, change that jailbreak status under me name nah. I know what jailbreak and SSH and all dem ting iz

)
Coming out of this post, I will also help any Mac user that needs advice or help with the downgrading of the firmware of their iPhone. Post in the relevant forum and send me a link.
Thanks again!