So I had the g2x for awhile now, an I found the internal memory getting full. So I got the lexar 32gb class 10 from buy dot com. It was like $89. It installed perfect, no formatting needed. Pretty much plug an play. Then I noticed nothing would really save to it. I searched the forum for answers an found none. So mb this will help someone else. G2x comes with Polaris office. Open Polaris, cut, copy, paste one at a time. Paste to_ExternalSD. With the entire contents of the phone copied to external, delete the phone memory. I think it says format internal memory. Now by default everything goes to my card rather than my internal. Hope this will help someone.