Simple Logo Required For New Business

I need a simple logo to be designed for a new iPhone App business, the logo needs to be sleek, clean, glossy, modern and fun. The logo has the work App in it, full name will be released to winning bidder.

The logos in the links below are similar to what i am looking for, the colour scheme of my website will be, grey, black, white and lime green.
http://tapbots.com/software/weightbot/
http://www.dopplerpad.com/
http://www.evernote.com/about/download/iphone/
http://www.spoonjuice.com/
http://ghostly.com/discovery
http://uk.moo.com/
http://www.designyourway.net/blog/identity-and-branding/54-great-green-logos-for-inspiration/ (from this website i like, Van Tassel Design, Cycliner, ZEST
and Heavy rotation )

Most of the logos i prefer are horizontally designed. The main colour of the logo needs to be lime green. I honestly do not mind if the logos are very similar to the ones from above. I am not really looking for a original design im for a good looking logo.

The budget may be low for a lot of people but as this is a startup and i have just graduated i cannot afford much and also i do not require a very complicated design.