There is no way to sync chrome extensions. It could be using a third party extension only.
You could sync Google accounts to Chrome. This can be done by the people's tab in the Settings.
yes, check out TuneRanger
Yes, you can sync some PDAs with two computers.
sign in to Chrome, and sync your data, Enter a Sync Passphrase if needbe I may be misunderstanding your question, so look around a bit more, maybe check the google forums
It can sync with a maximum of five computers.
There are a number of download managers in the market. Anyone can sync with Chrome to it's fullest.
it means cannot be used due to updates or no connection
Active Sync is used to share and synchronize data between desktop and laptop computers. Now it can also be used with tablet PC's. It was first introduced in 1996.
you can only use 1 computer but the iphone can go to 2 computers
Import music into iTunes. Sync iPad with iTunes.
Yes absolutely, the main item you need to do this is a router and router ready computers.
If you're browsing in the web, it doesn't run any different from browsing on the Chrome browser. The applications and extensions you can add onto the Chrome browser will automatically sync when you are on a Chromebook (using your Gmail address). Most files and documents that you can normally run on a traditional Windows or Mac desktop or laptop can run on Google Docs/Drive or a Chrome extension that supports it. The exception are executable (.exe) files.