The reports of the desktops’ demise are greatly exaggerated (and probably made up by tablet manufacturers).
"The perception is that tablets are proliferating and replacing traditional PC and laptop machines so we developed our research platform to isolate tablet usage stats," added Aodhan Cullen of StatCounter. "In reality we found that tablet internet usage globally at less than 5% is still relatively small compared to desktop and mobile."
If you use only numbers to name a blog post, the link to that post will end up being a 404. This is a long standing bug in WordPress (first reported 6 years ago, and as of 5 weeks ago finally slated to be fixed in yet-to-be-released version 3.9). You can include numbers in your blog post title along *with* letters, but don’t do numbers alone. Same advise stands for blog posts with no titles, those will likely end up a 404 also.
The #WordPress bug report, for reference:
“if you create numeric-only post name, the generated slug is this number - this conflicts with article ID, so it returns different article or 404 page, never the article.”