Until a couple of days ago I thought that the Phoenix was the same as the Thrive except for the color and whether you bought it prepaid or on a regular contract service. But it appears that there is a slight difference.
The Phoenix source code is apparently now available. One fellow has said that the only apparent difference between the Phoenix and the Thrive is that the Thrive can come with either a Hitachi screen or a Novatech screen. The Phoenix source code only mentions the Novatech driver, meaning that it never comes with a Hitachi screen. On the other end of the line-up the Optimus One only comes with the Hitachi screen -- so far.
Having said that, there is enough incompatibility between these products and other "Commtiva Z71" based phones that it is possible to brick a phone. See:
Also, somewhere else I ran across some info and it looks like the Novatech screen is a bigger deal than I thought. It is capable of being set brighter than the older screen, so you can use it better outdoors in daylight.
At this point it is a fairly stock "Thrive" build but there is theme work being done.
Tried it out and it works perfectly the only thing it needs is a custom kernel and recovery because it gets an error from flashing p500 recovery from rom manager and the screen turns blue but, it works. Just need a kernel and recovery and thats it roms could be made for it!!!
Hey I haven't been for some time since my lg decided to corrupt my nandroid backup. Any way for any lg P505(Phoenix) owners out there can you share with me a nandroid to atleast boot up my lg. It will be greatly appreciated.