Many of us already have/use the jailbreak program "Music Controls," and it likely will be obsolete once 4.2 hits the streets, but it should have a review, nonetheless.
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What it is:
Music Controls is a jailbreak app available through Cydia that will let you control virtually any audio application on the iPad. It can take over control of iTunes, Pandora, Slacker Radio, XM/Sirius, last.fm, and many more (38 in all), giving them all the functionality that iTunes comes with by default. Pop-up audio controls now work with these 3rd party apps, along with swipe gestures to change songs, just as you would with iTunes, and has built in additional controls you can activate. Album art gets added to the lock screen and optional music controls get pasted along the title bar.
More capabilities that Music Controls provides to control your music:
- Task Controls (4.x)
- Popup Controls (3.x)
- Lockscreen Controls
- Headset Controls
- Bluetooth Controls (3.1+)
- Statusbar Controls (3.x)
- Lockscreen Swipe Gestures
- Swipe Gestures while the display is OFF
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What it costs:
Free trial for 5 days
$4.99 for the software
Review
Music Controls is an essential jailbreak add for in-car iPad use. The app does exactly what the OS did not. The addition of the lock screen controls prevents added touches that were previously needed to control our music. I haven't got to play with the "swipe gestures while the display is off," but the concept definitely intrigues me. Likewise, bluetooth controls should be very handy to anyone that has integrated a controller into their steering wheel.
One rather significant issue is how it handles backgrounding. On its own, it's rather unclear how the backgrounding is performed and what is actively running, thus making it increasingly difficult to "quit" a backgrounded app. Additionally, most of us already run Backgrounder for other applications like Rev, DashCommand, etc. When both are trying to engage the same program (Pandora, for example) it can get a little confusing. Often I don't know if I've ever quit a program entirely.
I also ran into a time code error, where the iPad reported a time different than the Music Controls server, causing Pandora to continually crash. In order to fix this, I had to manually enter the time in the iPad preferences.
Overall, the program is at LEAST worth the free trial, and most likely worth the $4.99 purchase price. iOS 4.2 will make the functionality of the program obsolete, but with no concrete launch date set, $4.99 is a worthwhile investment for this functionality until then.

