My top 10 Application lists are the following: The reason I chose this apps over the millions available in the Android Market is that these apps, change your mobile phone into something complete different:
Layar – Augmented Reality – The perfect amalgamation of virtual and real world. 
Google Sky Map – Converts your mobile into a telescope, just imagine how beautiful it would be to see Andromeda Galaxy standing up on your terrace.
Goggles – Want to know about the latest mobile, but don’t know which model it is, just take a picture and google will tell you everything about it. It is not just limited to mobiles, just anything you want to know about, take a pic and the super cloud computing of Google will do the rest for you. 
Barcode Scanner – It converts your mobile into a barcode reader, so next time you are shopping, you just need to scan the barcode to know everything about that product. 
Talking Hippo – It is a really funny cute Hippo, which reiterates whatever you say to him in his own voice, and ya you can tickle and play with it too. A nice friend living inside your mobile. 
Soundhound – In a DJ, you like that number, you want to know which song it is, but you cannot reach the DJ, no prob, just use this app, and get to know everything about the song. 
AngryBirds – A really funny game, so your mobile is now a gaming device too. 
Nimbuzz – Convert your mobile into a VOIP, use your WIFI to talk to your friends on Gtalk, Skype etc. 
Aldiko – Turn your mobile into a virtual library and read tons of quality free ebooks. 
Wifi Tether – No internet connection around you, know prob, just turn your mobile into a wifi Spot, and yup you are connected to the world.
