Google have finally launched a webstore for Android, It has already gone live so you can click the link below to start browsing. You can simply browse the massive collection of apps and games and buy anything you like. Once purchase it will also install through over-the-air magic aswell.
Google have also announced the in-app purchases ability for any developers interesting in use it, Which comes as good news for them but no so much for the end-user who will have to deal with them.
You can check out the new Android market here @ market.android.com