Simply Minesweeper has the advantage over its three predecessors in that there are no other DSiWare games competing for the title of best available Minesweeper game. For a mere 200 DSi Points, you get 150 different Minesweeper puzzles, which could very well last you quite a few hours. The presentation is lacking but the core gameplay is fine, if simple, and that's the most important part.
The Nintendo Weekly Download Report for October 6, 2011.