Search, access and filter Amazon and Ubuntu One Music Store via Unity Shopping Alternate lens (third-party lens)

Ubuntu 12.10 ships (by default) Unity Shopping lens, adding a shopping utility to the Dash home, meaning, typing a word in the search area exposes (along with locally-based files and folders) online search results (such as Amazon's).

The Shopping lens has been implemented as "hidden", pushing search results on the Dash home, yet not owning a dedicated icon on the lens bar; essentially, the developers' work-in-progress is focused on constantly adding new online and offline data sources to Dash's home, (probably) culminating (in the upcoming Ubuntu releases) with a full-fledged everything-you-want experience (capable of delivering a multitude of diverse search results in the Dash home).

Unity Shopping Alternate lens is a (third-party) handy lens, that gathers and exposes the power of Amazon and Ubuntu One Music Store directly into the Dash, while being housed under a dedicated lens (featuring a "personal" icon on the lens bar).

Its usage is as simple as typing a word in the search area and clicking on a preferred result, action that opens it via the default web-browser.

A definitely interesting aspect of the Unity Shopping Alternate lens 0.1 is its available filters, filters presenting users a 1-click away manner of filtering online search results via countries, such as US, UK, China, Japan, etc.

Basically, the filters bear a highly-usable approach, meaning, if typing a word returns only Ubuntu One Music Store-generated items (in situations like user's country is not supported), clicking US, immediately populates the lens with Amazon search results (thus allowing the user to further inquire into the of-interest products).

Unity Shopping Alternate lens categorizes its results in Products and Music, easily pushing a clarity (and ease of item identification) into the lens.

Unity Previews are an aspect considered by the Shopping Alternate lens, right-clicking on an item, opens the item via its preview, where relevant details are to be "digested" (like for instance "title", long text description, big-sized clear product image), as well as direct interactions with items (such as option to preview --by playing-- a music album from Ubuntu One Music Store).

Immediate perception is definitely a noticeable quality, meaning, performing a search renders matched items with commercial labels (such as musical note, symbolic store), as well as prices.

In use cases like selecting various countries, Unity Shopping Alternate lens properly notifies the user with a top-area-located warning, clarifying the user about potential issues.

How do we install Unity Shopping Alternate lens 0.1?
Add the following official PPA (Precise, Quantal, Raring)

sudo add-apt-repository ppa:scopes-packagers/ppa

sudo apt-get update
sudo apt-get install unity-lens-shopping-alternate

Bugs can be reported on https://bugs.launchpad.net/~markjtully