Has Zynga given up on FarmVille for iPhone/iPad?

Back in June, Zynga launched FarmVille on iPhone to much fan praise... that is, until they actually played the game. The game was riddled with bugs, lacked in features, and was simply an all-around mess, forcing Zynga to update the game, and then update it again - and guess what - update it again. For all of those updates, however, the game still has many problems, isn't as fully-featured as the online version, and simply won't even run in most cases.

Not to call Zynga out on this, but this all got me to thinking. Has Zynga given up on FarmVille for iPhone altogether? The current version available in the App Store is version 1.09, which was released towards the end of October 2010. There are clearly problems with the app that need to be resolved, and yet they have made no attempt to further update the app and fix them. Before this time (October), the app was being updated at least once per month - nine times between its launch at the end of June to its current state on October 21. What gives?

This lack of updating leads one to think of four possible reasons as to why.