Just because you use Helvetica doesn’t mean that it’s going to be good. This is true especially when you mess around with Helvetica and stretch it in ways it wasn’t designed to be stretched in. The best way to get better at visual design is to look at good examples of visual design. Try http://dribbble.com for doses of inspiration. Look at how they handle type: nice spacing in between letters, words, and lines (whitespace). Type is not about the letters, but about the space in between the letters. Your colors are also really terrible. Try http://kuler.adobe.com for inspiring color palettes: what mood do you want to evoke? Hurried? Relaxed? Professional? Dark and techy?
And get rid of those awful finger print touchpoints. Transparent circles will suffice.