Nexus 7: which preloaded apps need your gooogle account login

As it is mentioned in a previous post, the setting up process of the Google Nexus 7 tablet would need user's email account (Google gmail account). Looks like there is no way to by pass that step, but you may remove that account later after finishing the setting up process. However, some of the preloaded apps on the tablet definitely need user's
email account and need user to log into those accounts.

Here is the list of these apps:
1. Current
2. Email
3. Gmail
4. Google
5. G+
6. Latitude
7. Map (My places)
8. Messager
9. People (recommended)
10. Play Books
11. Play Magzines
12. Play Movies & TV
13. Play Store (will need account login when downloading apps)
14. Talk
15. Wallet
16. YouTube(if user want to upload or play playlist)
So totally 16 out of 28 preloaded apps or some features of these apps  need user to log into user's Google account.