I returned my second Captivate today. My 30 days is coming due next week, and I don't want to run the risk to messing it up on the weekend and being stuck unable to return it.
It was an interesting flirtation, and I learned a lot. I like the Captivate more than the plastic backed units of TMobile, Sprint and Verizon's versions. But, I didn't like the way it performed on AT&T, and I didn't like AT&T's plan pricing, even though I get 22% off through work.
My Galaxy S model was also hardware locked to prevent recovery mode booting. I may have been able to use download mode to flash a new ROM. But, that built-in functionality irritated me, along with AT&T's bloatware.
I LOVED the screen. My friends with iPhone 3s and 4s envied the SAMOLED screen. It was stunning for EBook reading, something my SO and I do every night.
But, i won't miss the other little problems.
I went back to my old Nokia 5800, which is better for playing music, has a built-in radio, more pocketable, is unlocked and brand-neutral, and keeps me from being locked into a contract. I hope to see cool things from the HTC Glacier/Project Emerald, and other models in the next six months. Dropping my Captivate frees me to take advantage of what may be around the corner, and hopefully will fulfill the potential that I thought Galaxy S has on paper.