iphone and ipad app for emails that supports colors, fonts, etc I can easily bold, italicize, and underline words...but I really want to be able to style my emails.  

Are there mail apps that:
*  support colors (mandatory)
*  free or low cost preferred

Nice to have are:
* full "html editor" built into the email client to change fonts, font size, color, alignment, etc.

Can someone recommend options?
I do this so seldom, that I use another editor to compose what I need and then copy/paste. On the iPad, you have split screen so you can edit in one larger pane and then compose the main in a smaller pane.

Here are my editing apps of choice:


Notes - free and powerful
Coda - HTML powerhouse
GoodNotes - more for note taking, but handwriting to text is so awesome, I had to include it
Drafts - pure writing power
Pages - also free and powerful


Each has different strengths.