I don't believe "Jailbreaking" will resolve the lack of "cut and paste" features or is their some cut and paste bootleg OS patch / hack you know of that Apple & ATT is not allowing to be install?
No, I don’t know of any C&P third party application.
I’ve spent hours reading about PDAs , but am not at a decision yet. I liked the Palm TX I had, but the browser could have been better.