When it comes to voice guidance and turn-by-turn directions, the GPS app on many smartphones and tablets usually needs to be coded in a native kind of way. TeleNav is changing that by offering the first GPS navigation service of its kind that is powered by HTML5. That means it can be completely browser-based and work on any OS.

It doesn’t have a name yet, but the new TeleNav creation completely opens up new windows for both developers and consumers. The HTML5 browser-based solution offers voice guidance and turn-by-turn, just like a standalone GPS navigation device. No need for a static mapping service. Developers can add a single line of code and away they go.

If you are a current app developer and would like to take advantage of the new HTML5 GPS API from TeleNav, you can sign up on their website for updates and such. Code once and deploy on multiple platforms. The planned launch is in early 2012.

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What exactly does this mean? As you may be able to guess, the API allows app developers to detect whether a user’s iOS 4.0 device has been jailbroken. For app developers and enterprise IT folks, this gave them a way to find users who were more susceptible to attacks (jailbroken devices are generally more vulnerable) and proceed to provide the suitable protection if they could. Apple doesn’t want you to do that anymore. Maybe it’s because they’d prefer if the only real protection was not jailbreaking in the first place.

Interestingly enough, it is the hacker community that is also working to safeguard their jailbroken brethren. Stefan Esser of Saktion Eins will be demonstrating a tool called antidote on Tuesday. This is said to add ASLR (address space layout randomization) onto jailbroken iOS devices, scattering key memory locations around the phone. This makes it more difficult for hackers (and their attacks) to find those critical tidbits of data.

At the end of the day, the same old lesson holds true. Yes, jailbreaking your iOS device will offer you more apps and more flexibility, but at the same time, it comes with its share of risks too. It’s up to you how you want to proceed, but antidote looks like it could help a little.

[The Register]

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