Hi Folks!

Does anybody know how the "package manager" at Android works?
Is there really a package manager working in the background or is this only a dumb Download and uninstall Application?

I ask because I've seen how fast this at Android works compared to the N900.
If I run apt-get update at Maemo (with activated extra-devel) it's downloading about 16 MB! At Android it seems to me that it was not very much traffic. (I was unable to check this)

But compared to Maemo it were a lot more Applications in this "Store".

Does anyboy know a little bit about the background how this works at Android compared to Maemo?

I ask here at maemo.org because I would say we have here many technically adept guys around with a lot of knowlage regarding Linux and Nitroid. I hope for a straight answer with a lot of technical fundamentals.