Apps and songs all have different file sizes. Thus, it is impossible to tell.
Here is something to get a relative idea as to what your needs are: Most songs are usually 5 minutes or under, and have a file size of 10 megabytes or lower. Many songs usually only take 7-9 megabytes of space. Most apps are generally under 10 megabytes, but some are over, and very few are.
Depending on the size of the apps the maximum amount that can fit on your home screen is 144. However, with iPhone OS 4.0 this will increase to around 1600 with the addition of folders.
ok, i have the 8gb nano, and if you're talking about songs, each gigabyte is 250 songs. 250x8=2000. 2000 songs. don't ask me how many apps that is, because i don't know.
2000 songs or about 7 movies
2000 songs videos and apps {together}
As much apps as you can hold 10 pages
It does not take apps.
Lets say you have 150 songs you will be able to hold around 160 apps which is the limit of the ipod touch
My 8g iPod has about twenty apps and 300 songs I think it is almost full.
about 100 or 200
1750 songs
it depends on how many songs you want.
As many pages as there are. 16 per page.
This is dependent purely on how big the hard-drive inside your iPod Touch is.
You can store 144 apps on an Ipod touch.
It depends on the size of the app and whether or not you will also use your iPod touch for music and videos. Apps range from 1MB to 200MB, so if you are ONLY storing apps, then you will be able to hold around 800 apps.
as many apps and stuff you can put on your screen
it depends on how many GB's you have. you see i have an ipod touch with 8GB on it and so i would hold about 8000 songs and games a little more then about 150 apps.