Latest data released last July 5 by the comScore MobiLens service revealed that Android continues to rock and roll–to put it simply. comScore’s study found that almost a quarter of mobile users have Samsung devices and that about 2/5 of smartphones are running on Android. Text messaging, Web browsing, and app downloads remain the top 3 uses of smartphones.

comScore surveyed some 30,000 United States mobile subscribers with age 13 years and above. The online survey covered the months of March, April, and May of this year.

Samsung takes the lead in providing mobile devices for the market, with LG and Motorola following in second and third places, respectively. Apple lands at fourth place, while Research in Motion (RIM) placed last. The top three manufacturers (Samsung, LG, and Motorola) are makers of Android devices. The combined market shares of non-Android makers Apple and RIM couldn’t even match up the market share of Samsung alone. Samsung’s current share, however, remained the same as its reported share in the last comScore survey in February this year. Apple, on the other hand, increased its share by 1.2 percentage points, while Motorola (poor Motorola) lost some share by 1 percentage point.

Google’s Android platform kept its top spot on the chart as the choice operating system of 38.1% of the survey respondents, while Apple’s iOS remained at second place. Between the two, Android had a whopping increase of 5.1 percentage points from comScore’s earlier survey in February. iOS only gained 1.4 percentage points. Meanwhile, RIM’s and Microsoft’s platform share fell by 4.2 and 1.9 percentage points, respectively.

Text messaging remains the top use for survey respondents’ primary mobile devices. More interest in using mobile devices for playing games, for downloading apps, and for accessing social networks and blogs seem to be gaining ground as indicated by the percentage point increases.

These latest comScore MobiLens figures strongly suggest Samsung’s dominance and Android’s stronger foothold in the U.S. mobile subscriber market. Whether the trend continues over the next few months remains to be seen. What vibes are you getting for Samsung and Android?