ComScore just released the results of their May 2012 research from their MobiLens service, which reports on trends in the mobile phone industry. In this case case, they were looking at three month period from February 2012 to May 2012.

The study takes into account responses from over 30,000 U.S. mobile phone subscribers. It also listed what the trends were at the beginning February versus the end of May.

Here are the results for smartphone and non-smartphone OEM mobile phones:

No surprise, Samsung came out on top with over 56% share of the OEM market, and relatively no change over the three months. LG also held their share of the market and came in at over 19%.

Apple increased mobile phone market share and went from 13.5% in February to 15% in May. Motorola lost a little going from 12.8% down to 12%. HTC changed very little, slipping from 6.3% down to 6.1%.

Here are the results for top smartphone platform market share:

Google came out on top, rising from 50.1% in February to just under 60% in May. Apple, of course, was next in line holding a 30.2% share in February and rising to 31.9% by May. RIM, somehow actually still in the game at 13.4% in February, but falling to just 11.4% by May.

Microsoft held about 4% share in February and gained very little. Symbian, which held 1.5% in February slipped to just 1.1% by the time May rolled around. So, as you might have expected, Google and Apple control about 90% of the smartphone market.

The results for mobile content usage:

The way people are using their phones remained relatively unchanged from February to May. The only significant change came from people who listened to music using their device which rose from just under 25% in February to 27% in May.

Around 75% use their phones to send text messages. Around 50% of users take advantage of their phone to download apps. Also about 50% used their phone to browse the web. Around 33% used them for gaming, and about 36% used them to access social networks.

So there you have it. While things remain relatively unchanged over the three months from February to May, almost everybody (90%) who has a smartphone is using either an Android or an Apple operating system.