After all these years, and growing up with Windows 3.1, I have seen an entire evolution of computers and software. Touch screens and large resolutions were a pipe dream just 15 years ago. Now it's the norm. Going from a Packard Bell (yes, before HP) that couldn't run 3D Ultra Mini...
Use your first few passes on a level to memorise the layout.
You'll get a higher score if you don't use bonus items.
Try not to obscure the screen when you play - that applies to both sides of the device.