I have only just recently seen that you can play in the browser! Now obviously it doesnt link to my maps on my laptop, but if I create a map on the browser, can I link it to my laptop? Or is it just the browser only?
No, in Alpha the maps are located in the .minecraft folder in your %appdata% roaming folder under saves
(appdata/roaming/.minecraft/saves) So therefore you would need to get a memory key and transfer them that method