Perhaps a nod to Samsung's corny candybars and Nokia's wild Earth-friendly hardware, Sony Ericsson has unveiled its GreenHeart concept, a never-destined-for-production handset that incorporates a bunch of green technologies that it'd like to bring to market over the coming years. Most of the GreenHeart's ideas are totally logical and could be executed today -- online user manuals, bioplastic and recycled plastic materials, and a charger that draws just 3.5mW in trickle mode, just to name a few -- but the company is shopping around the whole lot of it to customers and "selected partners" to determine which eco-concepts should be implemented for production and in what order. Unfortunately, Sony Ericsson isn't seeing fit to show any pictures of the GreenHeart right now, which we take to mean it looks like a tree.

[Via Unwired View]

One of the main arguments that Windows users offer during those habitual debates with Macheads is that PC boxes are much easier to upgrade; instead of buying a new machine every year, you can simply swap out components ad hoc. Well a graduate of Ireland's National College of Art and Design imagines taking this convenience a step further, with a tree-shaped rig -- known as Cultivate - the Sustainable Living Computer -- whose CPU, RAM, hard drive, and other swappable parts extend from the motherboard-packing "trunk" inside removable "branches." Designer Laura Caulwell won a cool €2,000 $2,929) for her concept, and also earned the right to compete for January's annual International James Dyson Award in Australia, which offers up £15,000 ($31,476) in prizes.

[Via The Register, photo courtesy of Electric News]

The same store who snubbed the idea of installing Wii kiosks in its stores and is probably installing Big Brother style monitoring systems as we speak is now looking to take a bigger stand in its fight to keep Mother Earth in good shape. Following the trend of downsized packaging (as in Apple's iPod, for instance) and recycling as much as humanly possible, Wal-Mart is now setting a goal to sell "sustainable electronics" as early as next year. While it's not entirely out of character for a mega-corporation to jump on the green bandwagon, Wally World has "released criteria that will be part of a scorecard used to evaluate consumer electronics suppliers on the environmental sustainability of their products," essentially forcing suppliers who want to keep their products on such hot shelves to rethink their approach to "minimizing impact on the environment." While we can't deny that those huge boxes are quite enjoyable to take home, compacting PC titles to simple jewel cases would be a long overdue start to minimizing the amount of waste just sitting around, and we're such Toshiba is getting a nice pat on the back for already helping the retailer out.