@Jensto - Yes, you can definitely include the Corona badge in the app itself.
-Inna
I made a set of high-def Corona logos/emblems for placing inside of your app/game - feel free to use them:
@Inna, thank you for your answer.
Your resource is very nice, and some of them would actually fit better in our app. Are these logos approved by CoronaLabs? Sorry to sound so picky, but I know some companies are very particular about their marketing material. And I feel it is better to ask one time too many. Maybe someone at Corona could confirm the use of these…
Hm… Never thought about that.
It would be nice to have someone from Corona confirm this 
C
Thanks for creating these Caleb! You can definitely use the badges you created inside your apps.
When it comes to your website however, we’d appreciate if you please use the official Corona SDK badges.
Thanks!
Inna
That is fantastic and really good to know! Thank you so much.
@Inna Treyger:
Ok - putting them in apps was what I made them for: they’re wider, and thus fill an iPad or an iPhone screen better. The badge for the website is perfect to put in a sidebar (in fact, it’s already had a home since a couple of months ago on my website :)) because it’s more compact.
-Caleb