One of my real iPhone favorites � a game that I actually play for fun (a rare thing, given the number of titles we move through to find the gems among the chaff out there) � is Imangi's Harbor Master [link], which The Independent recently dubbed the third best app in the App Store. And the iPad version, Harbor Master HD [link] is the best Harbor Master experience to be had, thanks to the device's large display. Happily, Imangi's v2.0�Harbor Master update, which went live just a few hours ago, brings some of that big-screen detail to the iPhone 4's Retina display.

Imangi lists the enhancements in this update:

• Completely remastered high resolution graphics for the iPhone 4.
• New level! We adapted Cargo City, our most popular map from the iPad version, for the iPhone screen. It has 3 cargo types, so it takes "multitasking" to a whole new level.
• iOS4 multitasking support.
• Fixed twitter support so you can tweet your scores again.
• Rotation support, so you can hold your device however you want!
• A ton of bug fixes.

Imangi's current graphics guy, Kiril Tchangov, reworked all of the game's original art from scratch, putting his own, more "painterly" spin on the design, the studio tells us.

I think most people will be most excited about the new level, Cargo City. Cargo City is our most popular map from the iPad version, so we really wanted to bring a version of it over to the iPhone. It works really great on iPhone. With 3 cargo types, you have to turn on another part of your brain to control all those boats. You'll really like it. Here is the iPad version right next to the iPhone version, so you can see how we had to change it around to adapt it to the smaller screen.

I'll start out by saying that this is a bit of a curious post. The app I'm highlighting here isn't a game at all � not even sort-of a game. It's a music player, of sorts. But, a music player that should bring a smile to the face of many a gamer who sat in front an Amiga or PC, joystick in hand, back in the late '80s and early '90s. The app I speak of is French developer Yoyofr's Modizer [App Store]…and it's a MODplayer.

First, some history for those unfamiliar with MODs, trackers, and all that lot of sampled digital audio goodness. In 1985 the Commodore Amiga was released, bringing with it dramatic innovations on every front, really. And, among them, was its 8-bit, 4-channel, wavetable, stereo audio subsystem offering far better audio playback than any other consumer machine of the time. Digitized sound samples could be loaded into the Amiga's CHIP RAM and triggered for playback (and with zero CPU intervention), with highly realistic results. Two years after the Amiga's release, developer Karsten Obarski decided to create a program that would load samples into said RAM and trigger them for coherent playback using a simple script that's something akin to the scroll of a player piano. That program was called Ultimate Soundtracker. That script, plus its associated audio samples, all bundled together into a single file were called a module or MOD. Since then "trackers" of every sort, along with new MOD-like formats, emerged for platforms far and wide.

Demoscene coders were quick to adopt these trackers to create soundtracks to accompany their onscreen pixel magic and soon the "music guy" became a critical component of every demogroup. Noting this, game developers soon adopted MODs as their solution for in-game music. Back in the day of limited CPU resources, audio boards with real horesepower came onto the scene to enable efficient playback of not just 4 but 8, 16, 32, 64 channels. Demos and games benefitted mightily, and audio geeks had a new scene to drool over. (I was a GUS and CapaMOD man, myself.)

And plenty of iOS games have reach out to MODs, S3Ms, XMs, and other formats of the kind for their soundtrack solutions.

And, so we come back to Modizer. Is it the only MODplayer in the App Store? No, it's not. But it appears to be the most full-featured. Modizer supports a dizzying array of audio formats and, to accompany them, offers a variety of OpenGL-based visualizations, which is much appreciated by those accustomed to hearing MODs running alongside a demoscene production's onscreen pixel magic.

Modizer is a universal application, natively supporting the iPhone 3G, iPod touch 2G, iPad and up, with specific optimizations for the iPhone 4 and iPad. The app includes a file browser that allows free access to the MODLAND and HVSC collections � about 215,000 tracks in all � that, when downloaded, are stored locally for quick access. The archives contain audio tracks from basically every demo ever made as well as most games for the C64 and Amiga.

See our iPad demo video. The developer provides a few iPhone demo videos, as well.

At a mere $.99, Modizer is a godsend for gamers with a fancy for digital music. And, while indeed not a game, Modizer for iOS seems worth a spot here at Touch Arcade.