Android Email / Gmail bubble numbers?

[strtoutfrsh]

So I'm obviously new to this whole setup but was curious if there was a way for the Email / Gmail to show how many emails are new? My best example would be how the Iphone shows you without opening your icon how many emails you have? (for me its to show me which account has an email)

Second question - Whats the difference between Email / Gmail / Gmail Tags in android? They all do the same thing with a diff

 

[punkzanyj]

there's a widget that does the bubble thing.