If you want full, simultaneous access to the same database on multiple computers, you will need Panorama X Server. Unfortunately, that won’t be available until a bit later this year.
If you don’t need simultaneous access, you might be able to get by with a file sharing system like Dropbox. But if you do use a system like that, you have to be very careful not to access the database simultaneously on more than one device, or you will lose data. You have to make sure to allow a delay time between closing the database on one computer and opening it on the next computer to make sure that Dropbox has time to synchronize the data. (Dropbox is not the only such solution, but it is probably the most popular.)