Hey, looky what landed in our inbox. Here’s an interesting slide from a USA Today presentation that shows the number of downloads for each of the newspaper’s mobile apps — providing some insights into the latest trends in the mobile market, including the rapid growth of Amazon’s Kindle Fire.

The undated slide shows 260,000 downloads of the USA Today app for Kindle Fire, the Android-based tablet released by Amazon last fall. That is double the 130,000 cumulative downloads of the USA Today app for other Android tablets.

It still pales in comparison to the more than 2.9 million total downloads of the USA Today iPad app, but the iPad has also been around for a lot longer than the Amazon tablet.

Of course, the USA Today stats represent the experience of just one content provider, and the results would naturally vary depending on how the newspaper’s different apps are promoted within each platform. That said, the newspaper’s broad readership, cross-platform approach and national reach make the trends notable.

The numbers from the slide are newer than the app download statistics provided on the company’s website.

Other interesting stats from the slide include the 80,000 downloads of the USA Today app for Windows Phone — showing the Microsoft mobile platform still playing catch-up to Android and Iphone, although that’s not a huge surprise. Also notable is the 250,000 downloads for the USA Today app for WebOS.

USA Today also offers an app for touch-based Windows 7 tablets, but the slide doesn’t include those stats.

Amazon hasn’t given specific sales stats for the Kindle Fire, but estimates for the fourth quarter have ranged as high as 6 million units. Apple sold more than 15 million iPads over the same period.

(Thanks, anonymous tipster.)