OK. First of all, let my say that you are incredibly smart and intuitive
I did flash Plain Jane V2.0 with ap2sd. I wanted to undo the partition because I am switching phones soon and will not be flashing a ROM with ap2sd. This is me not really knowing what I'm doing and it shows at times like this
I thought if I put a partitioned sd card in my new phone that it would not work... So I did what I did to "fix it" , lol. Anyways, I had done a nandroid backup once I flashed Plain Jane and had everything as I wanted it, but only once. I did try restore with that and I couldn't. Keep in mind that I had never done that either. I have Titanium backup as well, and thought I was covered by that... not so much since I couldn't get into the market to reinstall it! Anyways, I ended up reflashing Plain Jane and that didn't work either, so I just unrooted the phone. Everything is back to normal now with exception of not being rooted. Hoping to get a new Samsung Fascinate sometime this week. Thank you so much for the lengthy answer and trying to help me, I really appreciate it!!
From a long time Eris user and Samsung Fascinate user
The Fascinate
-is the ONLY Galaxy S phone to still not have Froyo - and it is unkonwn when that will even happen. The software on the phone is CRIPPLING and ugly. Not nice at all, and Bing is the main search, not Google. Requires some hacking to change that.
-the GPS antenna is AWFUL, it takes 30 seconds to 2 minutes to get a GPS lock in situations where the Eris will literally take 5-10 seconds. Regularly (I have them right next to each other every day)
-The cell antenna sucks. Usually 12-18dBm less reception than the Eris, Incredible, Droid X, Droid, Droid 2, and almost any other phone around. This is from setting them side by side and testing them (I got my company to get 19 android phones, so I had an opportunity to test all of the newer phones, side by side). The reception is awful. Frequently, I lose 3g reception (1x only available) in places where I NEVER have/never do (like the office, or out by the Doctor's office... or loses reception altogether)
-There is NO status indicator light. No LED, no trackball. Nothing. You are forced to light up the phone to see if there is a notification. This is a sad thing, for an Android phone. It's not an iPhone. it's supposed to have a visual indicator.
That being said, the screen is amazing.
4" is the perfect size, and the SAMOLED is perfectly visible even in broad daylight, when other phones aren't.
The processor and graphics are just as fast as any on the market. (they say it's faster, but the software CRIPPLES the processor speed with random hangups and not having JITs (android 2.2)... so it FEELS slower than the incredible and droid x sometimes, but hopefully that will change. So even the incredibly fast processor and graphics aren't really all they're cut out to be.
If I could go back, I'd get an Incredible or Droid X.
For my personal phone, I'm just going to wait until next year, when the Incredible HD (or whatever 4.3" htc winds up being) and the Verizon 4g LTE network is in full swing.
Good luck with your choice. I regretted getting a Fascinate. I still use the Eris more often for a) reception reasons b) the UI of senseUI blows TouchWiz away (even using adw or launcherpro is not as good as senseui) and c) I know when I get texts/calls (because it has an LED indicator and a trackball).