A Chrome web app is a normal web site with a bit of extra metadata. Generally, all websites that run in Chrome today can be made "installable".

You build and deploy this app exactly as you would build and deploy any web app, using any regular HTML/CSS/Javascript/etc. server-side or client-side technologies you like.

Web apps are identified with a CRX package, similar to the packing procedure for Chrome extensions.

For now, to load installable web apps you need to start Windows Dev Chrome with --enable-apps
(command line parameter updated for Dev Chrome 6.0.408.1)

http://code.google.com/chrome/apps/
http://blog.chromium.org/2010/05/chrome-web-store.html

This is the New Tab Page showing icons for installed web apps.

Thanks Sarjoor, nice info...

and where I can download the webapp?

Originally Posted by Twins.Seven

and where I can download the webapp?

Any already existing webpage or webapp should be instantly convertible to an installable Chrome webapp. Such webapps are intended to run just as well in Chrome as any other modern browser as they are still just webpages and web-standard technology webapps. The website author just has to fill in the details in the manifest.json to point to the URL of the webpage/webapp, and specify any additional icons and/or required permissions. Then the manifest.json and icons/other resources can be packed into a webapp CRX, hosted on the webapp site (or Chrome Webstore), and can be downloaded by Chrome users.

You can create a simple 5-minute example Google Maps webapp by following these instructions:
http://code.google.com/chrome/apps/d...tml#installing

An "installed" Chrome webapp just has more prominent placement on the New Tab Page, and they have special tabs with floating icons when running in Chrome:

Cool. ^^ Glad this was finally released.
Though this is slightly different from before..I hope they didn't get rid of the app windows entirely.

Nice! Just made ones for YouTube too This looks like it will work great. If we could get TweetDeck for real in Chrome then awesome! It looks like this was what app tab was for when they were discussing it and all that. It seems that if you pin an "Web App" tab in Chrome. It will become a Phantom Tab when you close it

Made one for the Chrome Extension Gallery. Attached it here. Just download the .crx and drag it onto a open Chromium (Maybe Chrome Dev) window with the --enable-apps line added. Then click install when you get the extension pop-up thing. And it should appear on the home page like other Web-Apps currently do.

Here's one for this forum....
ChromePlugins Forum.crx

If anyones made any others then please share them while we wait for the web store. Just to save the hassle of getting icons if nothing else.

GMail.crx
GMail

GMail - html.crx
Gmail - HTML version

GMail - Google Mail Checker Plus.crx
Gmail - Google Mail Checker Plus version (just wanted to see if you could and mines slightly modded for full screen)

This is really awesome Just hope not many changes between now and the final release. I hope also there is a switch in the options so you can turn the "App" new page section off. Like you can hide "Most recent" and "Tips" etc on the New Tab Page. You untick it to hide it for when you don't want to use apps etc

I will make some more now. Working on YouTube,Facebook,Twitter,Hotmail and a few others.

EDIT:

Uploaded are ones for:

Google Maps (Google's Own Guide one)
Google
Google UK
Facebook
Twitter
Hotmail (Using the New 2010 Gold Logo that will be used with Wave 4)

Enjoy