Things are starting to get tense in iPhone land. As regular readers know, I think the iPhone is the greatest gadget of all time; that doesn’t mean I think it’s perfect, however.

Some of its flaws are starting to surface, and some bloggers are starting to take its shortcomings to task. Some are complaining about poor call quality and dropped calls. Personally, I haven’t experienced many of these problems; my calls rarely drop, and I don’t have any problem hearing or being heard.

There are also some features that are available on many other cellphones, most of them cheaper than the iPhone, that it still doesn’t support. They include multimedia messaging and using the phone as a modem, to connect a laptop to the internet (known as “tethering”).

A growing concern is about Apple’s App Store, one of the best things about the iPhone. Apple is starting to reject applications for various reasons, and those reasons aren’t always clear. It used to be that the rules for accepting or declining an app were very clear to developers; now, it appears that Apple may be trying to stifle competition by keeping out apps that compete with its own products.

The dissatisfaction with the iPhone began only recently; it would be a good idea for Apple to look into these issues and try to resolve them before this unhappiness starts causing mass defections to the many other good smartphones out there.