So the answer was in front of my face the whole time....

[boytek]

Been trying to get a iphone 4 cdma on metro pcs for a while no luck when i came across h2owireless cdma ... went to [Only registered and activated users can see links. ] and there you can activate a phone i entered the iphone cdma esn in the proper box and a few min later got a email saying it was active and a local phone number as well.. then i did #22890 and #22891 never hurts to do both there ota numbers lol,.. then about a hour later i did the *#5005*744663# and the number that was originally there was changed to the new local one and vmail works as well as calls and txt. thats all i tried so far... and some how got a 12 dollar credit with out adding any.. i mean you cant beat free esn added to there database and a 12.00 credit .. yes its prepaid lol
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update: this is probely not the cheapest plan but it does work. i had a friend who bought cdma iphone that was a lost and found and i kinda felt sorry for him and finally got this working at least.. Never had to talk to a rep once and finished the setup by using the vmail button in the dialer after verifying the number had been changed ...

and another update .. i was playing around with the *228 numbers and *22802 is sprint *22890 and *22891 is h2owireless cdma and *22806 is metro pcs i belive.. just play around with *228 and adding 2 digits behind it like 10 or 03 etc ..