The Google Keyword Tool has replaced the green bar indicator displayed in the competition column of the results with a text label of either “High,” “Medium,” or “Low.”

Visually, it will look different but technically, you are not losing much information. Plus, as Greg Finn notes at Search Engine Land you can still download the results, which shows the metric of competition based on a 0.0 scale to 1.0 scale in digits. So you can get very specific with the export file. Greg was able to determine the high, medium and low scales:

Low: Competitiveness number under .33
Medium: Competitiveness number between .33 and .66
High: Competitiveness number over .67

Here is a screen shot of the old green bar web version:

Here is how it looks for most people now, with just text:

Forum discussion at Search Engine Watch Forums.