Av-test.org have issued test report for Android security suits. Please read at http://www.av-test.org/en/tests/android/
The detailed test report can be downloaded in a PDF format on the said page.
Even if WSA mobile ranks in the second best group (i.e. a detection rate between 90% and 65%), there is no reason to panic especially taking into consideration that products with the said detection rate are still very good and could move to the top range depending on changes to the tested malware set.
Well done Webroot and keep up the good work!
Thanks & regards,
EDIT: I have checked all the applications tested by av-test.org on Android market and it is unbelievable how very poor rated applications (in fact useless as regards the security provided) have however very high downloads! I was really shocked. So Webroot come on, come on ... You have everything in place to beat them all.