PhunkWare has released WritingPad, a handwriting recognition application, into the App Store. WritePad allows you to write anything on the screen, and it is translated into text. The text can then be edited, or sent to the Mail application to be emailed. It works surprisingly well, and can even handle more than one word at a time. It also has many settings that help you to configure the application to fit your needs. » App Store- WritePad (Handwriting recognition for iPhone)

A toggle has recently been released in Cydia and Installer called KeyVib. This toggle makes your iPhone vibrate whenever you type. By tapping on the icon, you enable it/disable it. You then restart your phone to see the changes. » Cydia/Installer: KeyVib