Another monetisation option for users of the cross-platform tool.
Time was when mobile advertising was all about mobile web sites. But more recently in-app inventory has become hugely significant.
The question is, how do you make it easy for developers to implement the ads?
All ad networks have a simple API for this, but working with a partner that can provide one-off access to hundreds of developers is a quicker way to get in front of this disparate community.
That's the thinking behind this tie-up.
Marmalade is the cross-platform specialist that gives developers the ability to 'write once run anywhere'.
Developers can compile a single codebase to native CPU instructions, then deploy to all iOS, Android, and BlackBerry 10 devices.
The firm's customer base is growing fast, and has been used to code well known titles including Draw Something, Call of Duty, Cut the Rope, Lara Croft, Need for Speed, BackBreaker and many more.
It's also working with many non-games firms in different verticals.
With the new InMobi module, Marmalade developers can easily add in-app advertising, which is UDID independent and supports ad formats from banners to inline video.
InMobi reckons the addition could also expose these games to a wider audience as the firm has a global reach of 578m consumers in over 165 countries.
Tim Closs, CTO at Marmalade, said: "Marmalade is committed to helping developers better monetise their apps, by providing the widest partner service network of any cross-platform solution.
"We're delighted to partner with InMobi, to open up their huge reach and revenue potential to the growing Marmalade developer community."