Any Pardot users out there?

When testing a Pardot-sent email in Litmus, it seems that Pardot-hosted images do not display in Android 2.3. The images display in all other clients (except Lotus Notes 7, but, well, you know...). Non-Pardot-hosted Images will display in Android 2.3.

Does anyone else experience this? I can't find any help in the Pardot environment. The Pardot representative seems to think it's an issue with Litmus, and not with Pardot. I don't have an actual Android 2.3 device on which to test.