Yes. Every iPod Touch and iPhone, can use apps.
any apps for ipod touch 1g, 2g , and 3g will work and new ones
Yes you can.
yes you can make sure you have a apple account and download as many as you can
Yes, most of the apps are for the iPod touch. I have one 2nd gen and it works great for all except for one that need voice or camera.
All of the ipod touches. But i recommend 2nd generation and up.
Yes I recently jailbroke my iPod 2nd gen and all the apps I got off iTunes or the AppStore didn't get deleted
To sync the content and apps on one iPod touch to another, connect the new iPod touch to iTunes, and click restore from backup rather than choosing to set up a new iPod. If you put a password on your backup, enter that now. Then, wait for all of your content, settings, media and apps to sync to your new iPod touch. You can also do this between iPod touch 2nd, 3rd, and 4th generation and iPhones.
Yes, because some games are for only the ipod touch 3.0 version. So you would have more apps to choose from.
Many new apps now require the 2nd generation iPod Touch or higher abilities. It may also be the software you are using (it may be outdated).
Yes, it should because iPod touch apps are backwards compatible which means it can be used with most previous editions.
I have either a 3rd gen or a 2nd gen, I do not know, but everything works great for me.