Here is an example of a Missed It! widget displaying missed calls, unread sms, and new g-mail along the top of this WidgetLocker lockscreen. Missed It! is one of the most reliable, stable apps for tagging updates on these default applications. I have also used it successfully to display updates from Google Voice, Nimbuzz, and other apps I use to communicate with family and friends. Here’s how I created this widget from beginning to end. Note 2/12: this was done when gmail still allowed third party apps to count gmails a few versions of the gmail app back. Mail counts for gmail may work if you use K9 mail in the alternative.
Minimalistic Text allows users to save preferences for each widget to your SD card: this is useful for many reasons.