I would like to download iPod apps to my iMac G5 Intel. I did see it on the internet but can’t find it again.
To download free cracked apps, I would use http://apptrackr.org/. To put these on your device, you must have a jail-broken ipod touch and AppSync/ Installous downloaded from Cydia. Then drag the '.ipa' files into the ipod touch's apps screen in itunes when your device is connected.
I suggest you to try a iPod video converter. By using a video converter, you can transfer any video format to whatever you want. 4Media ipod video converter is really a good choice. I commend you to try it! It even can clip amd merge video. So fatastic!
You can find more at: http://www.mp4converter.net/ipod-video-converter-win.html
You can get any iPhone/iPod Touch app from the iTunes App Store in iTunes. Just search for the app in iTunes.
If you're talking about running iPhone apps in your computer, I don't think this is possible. However, you can try your own iPhone app if you're a developer and have a Mac to run the emulator/SDK.