Office of the Privacy Commisioner - Deep Packet Inspection
http://dpi.priv.gc.ca/

Whilst technically possible for sometime now, the use and ethics of DPI needs careful consideration.

Canada has been investigating several complaints involving ISP use of deep packet inspection technology.

OpenDPI - The Open Source Deep Packet Inspection Engine

OpenDPI is a software library designed to classify Internet traffic according to network protocols. For this purpose mainly deep packet inspection (DPI) is used. OpenDPI is derived from PACE, the traffic classification engine of ipoque, a provider of carrier!grade DPI and bandwidth management solutions. In contrast to ipoque's PACE engine, OpenDPI does not support the detection of encrypted protocols and it does not use any heuristic and behavioral analysis for classification.

OpenDPI is a software component for traffic classification based on deep packet inspection.

The size of an image in a website layout is important. From proper alignment to getting just the right amount of white space, sizing photos and graphics properly beforehand is essential to creating a balanced look. Images on the web are measured in pixels. Yet many people go through the trouble of setting their images to 72 dots per inch (DPI). The process of sizing them is often misunderstood.

デジカメは600万画素あれば十分

一般人には６００万画素あれば十分というお話

なるほど、なるほど。

最大A4サイズまで印刷する人はけっこういます。そういう人なら、400万画素のデジカメで十分ということになります。多少トリミングしたいのであれば、600万画素くらいのデジカメで撮影していると余裕があります。

The moment you first lay eyes on the iPhone 4's new Retina display, you are ruined. No other display will ever make you happy. Not unless it, too, is a Retina display. You start seeing pixels everywhere. My beloved MacBook Pro's screen? Pixels. The iPad I bought a few months ago and couldn't leave aside? Pixels.

Aral suggests some techniques to target the new super amazing display. The methods include media queries, javascript, svg and a few other sneaky techniques.

Cool blog/site about mobile dev and design and stuff

iPhone 4 でイメージを美しく表示させるためのコーディング方法

If you want your applications and web sites to look beautiful on the iPhone 4's new retina screen, you're going to have to create high-resolution versions of your bitmaps and/or use vectors.