I just downloaded the new Source Code Pro font (blog post | GitHub project) and decided to give it a try in Sublime Text 2. I like the results. Here’s the "before" screenshot:

And here’s the "after" (with Source Code Pro):

(See these images side-by-side here.)
One of the strengths of Source Code Pro is that it does an excellent job of differentiating between similar glyphs. Here are a few easily confused characters in my blog’s default font:
1Il|iO0oB8
And here they are in Source Code Pro:
1Il|iO0oB8
Here’s a good look at some metacharacters:
<>&"^$\/()|?+*[]{},.
Since I frequently use Vim as my editor, I decided to try Source Code Pro with the terminal, as well. Here’s the before picture (using Menlo):

And here’s the terminal with Source Code Pro:

If you want to give it a try, here’s what you do:
- Download the Source Code Pro font and unzip the file.
- Install the font…
- On Mac:
- Open the Font Book application.
- Click on the + button under the Font column.
- Navigate to the fonts you want to install (I installed the OpenType version).
- On Windows:
- Navigate to the folder containing the fonts you want to install.
- Select all the fonts in the directory.
- Right-click and select Install.
- On Mac:
- Follow these instructions for changing your font in Sublime Text 2.
Let me know what you think. So far, I really like it, but I’ll need to live with it for a few days before I know for sure.

It appears as though Source Code Pro does not have italic support. This seems like a fatal flaw.
I am using it in all my tools and love it. I think its the most readable font for coding.
Source Code Pro is definitely a winner. I am using it for quite a while.
FYI:
On Linux:
1. Download
2. Unpack font in ~/.fonts/truetype/
3. Follow instructions
The screenshots you posted show you changed italic to regular when you switched to Source Code Pro. How did you do that? (The synthesized italic is really ugly
)
I’m not sure about the missing italics in the font. I was using Calibri in TextWrangler – but giving Source Code Pro a shot here. The tab is PRETTY wide. Not sure I like that part but the rest of the font is nice enough.
Disregard my comment about tabs. For some reason when I changed font in TextWrangler (which I use most of the time for HTML) the tabs went from 4 spaces to 8. I assumed that for some reason this had something to do with the font itself.
Now – compared to Calibri, it’s a little harder to read (it’s a little thinner) on white, but I appreciate the glyphs. I wish there was a weight between Regular and Semibold – because I would use it. Like a Medium perhaps. Semibold is a little heavy-handed but Regular is too light.
Regular is okay when used on a dark/black background.