samsung impression questions

[SouthernFlower]

I currently use a Sony Ericsson K660i but with all my texting it's time to upgrade again. I'd really looked forward to Sony providing a qwerty phone (that wasn't expensive) and it just doesn't look like it's going to happen anytime soon.

so I found this on my ATT upgrade page and checked it out at the store. So far so good i like the display and function. But just a few questions:


Can the phone easily be unlocked?
When texting will it continue to allow me to or is there a limit on the amount? (sony allows me to continue to text depending on the room in my phone)
Can the front screen menu be changed?
Is there a shortcut button for common used apps? I only use text and photo and sometimes the phone, lol
Does it have a good speaker phone?
Does it have a good audio player?
What expandable media does it use?
Does it have profiles (ie: different settings and or ringtones for car, home, office, ect)?

Thanks!!

[SouthernFlower]

Also does it come with a USB data cable?
And does the GPS feature need service and does it work on it's own and will it still work after being unlocked?

[SouthernFlower]

... anyone can answer these? It seems like a really nice phone.