There is something like that available:
<a href="http:&#x2F;&#x2F;www.solcomputer.com&#x2F;sunlight-readable-netbook.html" rel="nofollow">http:&#x2F;&#x2F;www.solcomputer.com&#x2F;sunlight-readable-netbook.html</a><p>The specs are modest, but I bet it can handle your one requirement: &quot;text editing&quot;.