[calisoldier83]

How do you save a new number inside an old contact from a SMS or phone call history?

[dasDestruktion]

Sucks, but you have to copy/paste it in.
If this isn't for you (and its certainly not for me) you can purchase the cheap little application that can take care of this for you. Its called AddtoContact and costs about 3$. Works great and was just updated this afternoon.

You can download it [HERE].

Unfortunately, this is something RIM should have built into the OS years ago. Thankfully, some developers have made this a little easier for us though.

[Fuzzballz]

Just another oversight by RIM. Incredible really, the cheapest 99-cent phone can do it.

[DolfanCole#CB]

Good question. I was just copying and pasting 'cause I didn't know of a better way to do it. Unfortunately, I guess there isn't one.

[dasDestruktion]

Unfortunately, I guess there isn't one.

There is... The application I posted above. I have used it without issue for about a month now. Its only $3, but as I said before, it is a really big "blunder" on RIM's part IMO.