There a quite a few good music apps that can be installed with the IOS 421. You can get the music apps like Google Play Music, Sound cloud, Tango and Podcast.
There are a number of music making apps on iOS including Music Studio, GarageBand, KORG iKaossilator, and SunVox.
iCloud takes your purchased music, books, apps and your mail, calendar, documents and photos and stores them on an Apple server. Then you can, using Apple ID, access it from any other compatible device. Compatible devices are: iPod Touch, iPhone, Mac and PC
iCloud takes your purchased music, books, apps and your mail, calendar, documents and photos and stores them on an Apple server. Then you can, using Apple ID, access it from any other compatible device. Compatible devices are: iPod Touch, iPhone, Mac and PC
Any multiple of 421
This depends on the sizes of your apps. Different apps take up different amounts of space. However, if you dont have any music or videos, u could easily hold 100 apps.
not the app itself*
Yes it will work on any windows computer.
Music-wise, jailbreaking does not get you any free music that you wouldnt have had without jailbreaking it. You can find free music anywhere online, with or without a jailbreak. Jailbreaking does not get you free music, but does get you mods, apps, etc.
No, frankly. But just get it on your PC and drag and drop it with your USB cable
This product is intended for music file backup, but can be used as a regular DVD-R disc to backup any files you like, including Open Office compatible files.
If you need more memory space for additional apps, delete unnecessary data, such as emails, notes, images, music, and any apps you really don't need. This answer should also apply for any smart phone or tablet.
The 2nd Generation iPod is considered to be outdated. The versions of the iPod are usually not running any software newer than iOS 3. Most of the apps on the AppStore are not compatible with that late version. In order to download the "good" apps, you will need to buy a more recent iPod generation.