Because the iPhone developer can start with an existing userbase, and the developers of the web versions can now offer an iPhone app. I run http://weekplan.net

Because the iPhone developer can start with an existing userbase, and the developers of the web versions can now offer an iPhone app. I run http://weekplan.net http://weekplan.net which is in a similar space and many people ask me for an iPhone/Android app. I have made a mobile stylesheet but a native app would definitely be a Win/Win/Win (iPhone developer / Users / Me)