Tweaks to Siri have been cropping up regularly thanks to the untethered iPhone 4S jailbreak. AssistantExtensions in the Cydia app store is available for free, and makes it possible to add all kinds of useful conversations to Siri's repertoire. We've seen add ons to ask SIri questions about jailbreaking and have her announce the latest sports scores and schedules.

Now thanks to BatteryLevelAE, iPhone owners can ask Siri battery-related questions such as "How much talk time do I have?" Siri will respond with a rough estimate of how much juice is left on the battery for both 3G and 2G network connections.

Good news for owners of the iPhone 4S and iPad 2 looking to downgrade from iOS 5.1. iH8sn0w announced the discovery of a loophole that makes it possible to downgrade any A5 device to iOS 5.0.1. Not only this, but the developer has successfully restored an iPad 2 to iOS 5.0.1 using the procedure.

Found a loophole in Apple's apticket system. Restored my iPad 2 to 5.0.1 from 5.1. Works on all A5 devices. :)

— iH8sn0w (@iH8sn0w) March 25, 2012

Downgrading an iPhone, from iOS 5 to 4.3.3 for example, requires saved SHSH blobs since Apple stops signing older firmware when an update is released. It's likely that the loophole iH8sn0w has found will also require saved SHSH blobs to work.

Has your iOS device been running slower lately? There are a few simple things you can do to help speed things up and keep your iPhone or iPad running faster. Like any other computer, Apple's mobile devices require some periodic maintenance to keep everything optimal.

Over time iOS may slow down or even do some strange things, which could mean several different things. Before you rush to Apple or go through the trouble of a complete restore with iTunes, try these steps and see if your iPhone or iPad starts running more smoothly.

With all the recent talk of a 4.6-inch iPhone screen in the works, Italian design studio ADR has released a new iPhone 5 concept. The latest renderings from ADR are impressive, although they truly push the limits of what's possible.

Maybe this is why we like them so much! Not only does the concept show off a massive Retina display, but the front of the device actually consists of three separate screens. The top and bottom displays are narrow and consistently show the same information. This provides more space for the main screen to run apps.

Many were surprised when Apple revealed the glass-backed iPhone 4. After all, even though glass provides a smooth and brilliant touch screen surface, fingerprints and risk of breakage are constant problems. An Apple patent filing from last September shows that Apple is considering doubling down on glass as the main device enclosure material.

In short, this means that a future iPhone or iPod touch could be made entirely of glass, with the electronic components nestled inside. Some parts, such as the front screen, would be transparent. The rest of the mobile device would be painted, like the current iPhone 4/4S back and front bezel are made white or black.