For new adopters, you might be right.. but for someone who's using Dropbox already, there is no way.
Because it is all about the details. Gdrive doesn't have all the applications for each platform, and it will take them a while until they will get it right (even if they just emulate).
And I think DB knows that and they're trying to acquire Android users (by offering free 3GB if you sync photos from your phone) before Google integrates gdrive in Android: http://blog.dropbox.com/?p=984
It also describes rsync
You have a folder that exists on your devices, and the contents of the folder are automatically synced across all your devices. You also have a web interface that you can use to upload and download files. You have a certain amount of space and can buy more. You can share that folder or parts of it with others or teams.
Am I talking about Dropbox or Drive?