It's hard to believe that just a few years ago people doubted the pervasiveness of the iPhone as a mobile gaming device, but now most major publishers are publishing games on mobile devices. With games like Shibuya coming out of PAX 2010 and Square Enix and Capcom porting established franchises over to the phone, things certainly have changed.

We want to know how you feel about mobile games. Is Apple swiftly losing the market to Microsoft's Windows 7 phone and Android-enabled devices? Do you count the iPad as a viable gaming platform, or is the large display just too cumbersome to play anything substantial?

Follow these instructions, or I'll be very displeased:

1) Write anything you want about games on mobile devices. Avoid the DS and PSP if you can, but you're free to rip the N-Gage a new one.

2) Tag your posts "Mobile Callout" so I can actually find them. Hate to harp on this, but it is important, folks.

3) You have until September 20 to submit your entries to the Mobfeed.