It's time to take another look at the ever-changing world of mobile applications, with plenty to look forward to.

This time, we have a new location-based app from Google, a visually impressive shooter on BlackBerry PlayBook and an innovative music application.

 

Earn to Die

Based on a popular Flash game, Earn to Die has amassed quite the following since its launch on iOS - and for good reason.

The game is an endless-driving title of sorts, with players knocking down and shooting the undead. Additionally, players can also customise their vehicles with all sorts of death-dealing devices.

Earn to Die is available from Apple's App Store for $0.99.

 

Google Field Trip

An interesting application from Google's secret labs, Field Trip is at first glance, just another location-based app, but it stands out nonetheless.

Running in the background, Field Trip pops up periodically with information about places and events nearby. It's a neat concept, and a fun tweak on the formula.

The application is only available to US Android users unfortunately, although there are application packages (APKs) on third-party websites, such as the XDA Developers' site. 

 

Polkast Music

With all this talk of Google Music and other cloud-music services, this application seems to be far more convenient.

Polkast Music lets you listen to music stored on your computer, without the need for a third-party cloud-storage solution. Oh yeah, iTunes is also supported, so you can bring your whole collection with you.

Polkast Music is available free of charge on both iOS and Android, although there are a few in-app purchases.

 

Revolt Classic

A port of the Sega Dreamcast and PS1 classic, Re-Volt has players driving remote-controlled cars through yards, neighbourhoods and more.

The iOS port of the game features 14 race tracks and a slew of game modes, however, the visuals have seen the biggest boost, surpassing the Dreamcast version.

Revolt Classic is available on the Apple App Store for $5.99.

 

Rebuild

We've had more than our fair share of zombie games being released over the years, but there's always room for unique takes on the formula.

This is the case with Rebuild, a city simulation that takes place during a zombie apocalypse, with players having to contend with rival gangs, illnesses and riots too.

Rebuild is available on iOS and Android for $0.99.

 

OpenSignalMaps

One of the more innovative applications on the Google Play store, OpenSignalMaps shows you the direction of your nearest cell tower.

It's got a slew of diagnostic tools as well, such as speed tests, while a crowd-sourced list of tower entries makes for a pretty interesting application.

OpenSignalMaps is available from the Google Play Store as a free download.

 

Shadowgun

The popular third-person shooter has already made an appearance on Android devices and the iPad but now, it's coming to the BlackBerry PlayBook.

Shadowgun draws a lot of inspiration from console shooters such as Gears of War, however, it has some silicon-crunching visuals too.

Shadowgun is available free of charge from the BlackBerry App World until 31 October.