OnScreen Pitch Count for iPhone and iPod Touch
Check it out: 
OnScreen Particle Physics™ OnScreen DNA™ On-Screen Scientist Blog
OnScreen Science, Inc., 46 Wallace St., Somerville, MA 02144 — 800-617-6416 — apinfo@onscreen-sci.com
Painlessly teach anyone—including yourself—the must-know details of how DNA works in 3D. OnScreen DNA for Windows XP/Vista and Mac OS X.
To download a free copy of OnScreen DNA Lite click here.
To purchase a full how-DNA-works edition of OnScreen DNA for only $39 click here.
"I've taught my share of biology and
had to teach DNA as well as having taken a cell biology class in college
that almost did me in. I sure wish I'd had access to this back then. The software was a no-brainer to install and use. I
was escorted through and encouraged to play. With included testing questions
this makes teaching the chemistry of the DNA molecule fun!"
Teresa, owner HowToTeachScience.com /
Bondora Educational Media
Use the navigation menu to the left to learn more about OnScreen DNA™. Subscribe to our free RSS web feed for news of future releases. 
Below is an actual screen shot of OnScreen DNA Pro™ showing DNA in the process of transcribing a gene to messenger RNA. Can you figure out what the color conventions are?
