White wine is more acidic than red wine, and drinking it frequently may erode enamel, according to researchers at Johannes Gutenberg University (Germany). Riesling wines are the worst in this regard, as they are the most acidic.
To minimise the effect, they recommend eating cheese at the same time (contains calcium, which counteracts the acid's attack). Conversely, eating strawberries at the same time, makes matters worse, as strawberries are also slightly acidic. It is also worth waiting at least half an hour before brushing teeth afterwards, as it gives time for the enamel to recover before it is brushed away.
(BBC Online) | For further info...

With Google's Android OS for shaping up to be a major player in smartphones, you may be interested in learning more about the various phones that are planned to adopt it. Currently there are twelve such devices, to be offered in 26 countries by 32 different carriers. Wired magazine has the rundown.
(Wired) | Cost: various | Requires: Android phone | For further info...

If you find the iPhone's virtual-only keyboard frustrating, you might welcome the iTwinge™ – a slide-on real QWERTY keyboard that makes typing up to 30-40% faster and more accurate, according to the manufacturer. Aimed specifically for the iPhone 3G and 3GS, the company’s website offers no information about earlier generations of iPhone or the iPod touch, so one must assume that they are not compatible. Shipping begins Dec 12th 2009, for orders placed before its official release in November.
The company also makes iBlur – a mini-tripod for steadier photographs by the iPhone.
(Chipchick.com) | Cost: US$29.99 | Requires: iPhone 3G/3GS | For further info...