When it comes to monitors, there haven't been any major improvements in terms of resolution over the past years. The Full HD 1920x1080 pixels resolution is still the standard. Monitors with 2560x1440 pixels have become more affordable, but are still too expensive for a major breakthrough. Given their current price, 4K monitors won't be widespread any time soon either.
Smartphones however, are a completely different story. Each new generation of smartphones seems to be accompanied by a resolution increase. Take for example Samsung's popular Galaxy S series. The Galaxy S2 has a resolution of 800x480 pixels, which increased to 1280x720 on the Galaxy S3. The latest creation in the Galaxy S line is the Galaxy S4, which has a 1920x1080 Full HD resolution, equal to that of most modern desktop monitors.
DisplaySearch analyst Shawn Lee indicates that this trend isn't over yet. Chip manufacturers are working hard to enable WXGA resolutions on smartphones. It's expected that the first chips supporting the resolution will make their debut in 2014. In the near future, it could result in 5.5, 6 and 6.5-inch smartphones with a 2560x1440 pixel resolution. As such, it's not unlikely that people will carry more pixels in their pocket than they have sitting on their desk. It remains to be seen whethere sufficient production capacity is available at first though.