Android has been there for quite a while now but there has been no serious medical applications for it so far except perhaps an iSilo compatibility.
Today, Unbound Medicine announced the availability of Android version of several of their popular titles such as the Merck Manual and Davis Drug guide.
Here are some screenshots copied from their website;

Check out the list of available titles here http://www.unboundmedicine.com/android
If this is telling us anything then it is the fact that medical applications are now ubiquitous on all mobile devices whether it’s Palm, Windows, iPhone, Android, or others.
Tags: Android, Unbound Medicine
iSilo also just released a version for the Android.
This means all of the medical iSilo references you’ve used on other PDAs/Smartphones can now be used on Android devices as well.
iSilo for Android: http://isilo.com/download/iSiloAnd.htm
Medical References for iSilo: http://www.meistermed.com/isilodepot/
Andrew Schechtman, M.D.
MeisterMed
iSilo also just released a version for the Android.
This means all of the medical iSilo references you’ve used on other PDAs/Smartphones can now be used on Android devices as well.
iSilo for Android: http://isilo.com/download/iSiloAnd.htm
Medical References for iSilo: http://www.meistermed.com/isilodepot/
Andrew Schechtman, M.D.
MeisterMed