Add cool symbols to email, text messages and notes with Glyphboard. It's not an app you'll find in the App Store. It's a web app that let's you add hearts, stars, smilies, musical notes and other little icons wherever you can enter text on an iPhone.
Open Safari on your iPhone and go to the Glyphboard web site (http://mrgan.com/gb/). Tap the "+" button (at the bottom of the screen) and then select "Add to Home Screen." An icon for Glyphboard will be added to a Home Screen, just like an iPhone app.
How to Use Glyphboard
Launch Glyphboard. Tap and hold on a symbol to select it, and then tap Copy. You can paste it into the Glyphboard scratchboard or paste it into an email message, text, note and anywhere you can paste text. You can use symbols in iOS 4 folder names, too.