@Keith: According to the Cordova docs which you've referenced, it is recommended that you use a 9-patch image
for your splash screen in Android. We've tested the Icenium splashscreen which has both logo and text on devices with low and high DPI and it is scaled properly, so we're not really sure about the unequal stretch you talk about. Anyway since Cordova have this functionality already available, we would introduce UI to set those images through Icenium for subsequent version. For the time being you can manually add those images to your app. To do so, push your app into git repository (e.g. github) and you would have access to the App_Resources folder - add the desired images (should be named splashscreen.png) from the github directly and then pull from Icenium. You're done.
On a side note, the feedback portal gives users the opportunity to provide feedback about our product, no answer is really needed or guaranteed.
@Markus: Android provides tool for creating 9 patch images. One is installed with the Android SDK: http://developer.android.com/tools/help/draw9patch.html.
There is also an online version: http://android-ui-utils.googlecode.com/hg/asset-studio/dist/nine-patches.html
Looking for tips & tricks directly from the Icenium team? Check out our blog!
Share feedback and vote for features on our Feedback Portal.