We took some time to look at your request regarding the iOS icons. Our current implementation let you upload an image with any format or name. We internally resize and rename the image to the appropriate dimensions. So when you upload an ICO file with any name, it will be converted to PNG file with the appropriate name (in your case icon.png). It would be great if you could try it yourself and tell us if you have any unexpected problems.
Currently you are able to upload any kind of files, not only images, which is a bug and will be fixed for one of our next releases.
Thank you very much for the feedback and for helping us improve the usability of Icenium.
the Telerik team
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