Found a very cool post from Chris Johnson about how you can use Microsoft’s free SyncToy to sync files on your laptop with those in a SharePoint folder. I’ve tried it and think it works pretty well for a single user that wants to access and modify files on a site or subsite that they have exclusive access to.
If you are planning to access a shared site (i.e. one to which other users contribute) this is not recommended, however. SyncToy is not able to resolve conflicting changes made on your laptop with those made on the SharePoint server. Even if you choose “synchronize”, changes on the “right” folder overwrite those on the “left”. Also, other SharePoint features (such as custom lists, issues, events or metadata), do not work and it doesn’t support metadata or views.
If you are looking for a free product that allows you to take files, folders, lists and libraries offline, with full metadata and views, I’d suggest you have a look at Colligo Reader.