Everyone has been raving about the iPhone. This comes as no surprise as it really is one hell of a phone. However, considering it's Apple's first stab into the mobile phone market, it's expected that it will still have some flaws.

One of the problems that has been pinpointed is the lack of consistency with its Graphical User Interface (GUI). One of the main complaints from users involve the location of  the "compose email" button. Other phones have this on the same place consistently, however, the iPhone places this in various locations depending on the application you're running. Here are a few examples from tuaw.com:

• Compose Button: The compose button, which looks like a square with a pencil through it, appears at the bottom right of many Mail screens and in the SMS Text application at the top-right of the screen. The Reply/Forward button appears just to the left of the Compose icon in Mail. Tap this to reply to a message or forward it on to another party.
• Envelope Icon. In the Notes application, the envelope icon appears on the bottom of the page, to the left of the garbage can. Tap it to email the current note.
• Use-For Icon: The use-photo-for icon appears at the bottom left of the screen. It looks like a rectangle with an arrow jumping out of it-the arrow is basically a mirror of the Reply/Forward button. Tap this and select Email Photo from the pop-up menu.
• Share: You can share YouTube video and Safari URLs by email. Tap the Share button on the Information page in YouTube and in the navigate-to-URL screen in Safari. To find this in YouTube, tap the blue reveal button located to the right of the video name. In Safari, tap on the URL bar and then look up and to the left.

These inconsistencies show a very modular method of designing the iPhone. The product could have been better streamlined with its different applications working in a more standardized manner. While this is a minor issue and is easily overshadowed by what the iPhone does right, Apple will hopefully take this into consideration when designing future phones.