Rated 2 out of 5 stars
The addon would be better if could actually implement this better functionality (splitting the tabbar, for separate tabs that relate to its corresponding split panel):
http://img833.imageshack.us/img833/4386/dualview.jpg (a proper secondary tab bar! for the 2nd panel split)
screenshot explains all. Splitting more than twice is almost never done, though its a nice added novelty, but the actual workflow and tab logic on it is completely illogical and could be improved.
The "browser-splitting" approach taken by Tile View is different to that taken by Maxthon, but both approaches are equally valid. Tile View implements a single tab bar, so that all tabs are available to all panels (tiles). Maxthon implements a separate tab bar for each panel, so that a particular set of tabs are associated with each panel. The the approach taken by Tile View is the more practical if there are more than two tiles displayed, because it avoids the problem of lots of screen space being lost to multiple tab bars.
The workflow is not illogical - first select the tile, then select the tab - that's it! Once a tile is selected, that tile acts as a normal browser and tabs are selected in exactly the same way as with the normal Firefox browser.