Updated: I have created several different versions displaying different today screen shortcuts. They can all be downloaded OTA from my web page here: Titanium Today Page

Supported Devices include 88xx and 83xx OS 4.2.1 and 4.2.2

Current Today screen icon layouts:

1. Call Log, Email, Calendar
2. Email, Calendar, Address Book, Browser
3. Email, SMS & MMS, Calendar
4. Messenger, Email, SMS & MMS, Calendar