One of the things that makes the iPhone unique is its virtual keyboard. Although for the most part, it’s obvious how to use the keyboard, there are a few commonly unnoticed features that you can use to increase your typing (or your tapping) speed:

1. Hold down a key for one second to see a list of variants of the letter as they appear in foreign alphabets. This works with the keys A, C, E, I, L, N, O, S, U and Z. This tip will save you the time it takes to switch between keyboards if you need to type in multiple languages.
2. When in Safari, hold down the .com key for one second to see a list of nine more domain endings, including .net, .org, .edu, etc.
3. The most obvious way of making a digit or punctuation mark on the keyboard is to tap the 123 button, tap the desired character, and then tap the 123 button to return to the regular keyboard. Instead of three taps, the same thing can be done in just one stroke! Press down on the 123 button, drag your finger to the character you want to type, then lift your finger off the keyboard.