You can verify this for yourself, but it'll cost you the price of both apps: about $7.

1. Buy them, right click on both apps in your iTunes Apps list and choose 'Reveal in Finder'.

2. Copy both to your desktop.

3. Rename them to .zip and unzip them

4. Click on the app file and choose 'Show Package Contents'

5. Compare dublinbus.db with dublinbus.png2

They are not totally identical, but there is a very significant overlap that cannot be down to chance.

Also, his e-mail to me admits that he copied my 'layout'.

Though, I agree that his website doesn't him look 'dodgy' by itself.