Where can I find the difference between the pic style of Nikon and cannon.

I am confused about what to buy, and I need to know what is the difference between these two so that I can choose what I buy.

I need to urgently SIM reader internet support. 

Every time I connect to the internet I am unable to make calls and vice versa. 

I tried searching for a software to do the same but could not find any.

Is there any way I can work around that?

I have upgraded from windows vista to windows 7 recently. Previously I  could easily use the LG tool to update my android phone but after installing windows 7 I am unable to install LG thrill update. It downloads to about 40% and then the it just hangs. 

How to convert and install a medicine central apk file for blackberry? 

Do I need to install a separate software on my Blackberry for this?

Can somebody suggest how to use phone monitor options android to record the conversations and save them as a .wav file on the listening device?

I did download the crazy call and it was fantastic I like it, I am having a thought of downloading it in my android mobile phone. Is it compatible with android operating system? If there is a way I can make it please do tell me experts. I like the game so much.

Sometimes I have to keep my black berry offline. Which supportive software is best to call to another cell phone while my bb going offline?

During upgrading software of blackberry, any phone call or message can stop upgrading. What software will be beneficial to upgrade bb offline?

My black berry has been switched off due to empty battery. I have to check my email urgently. Guide me about What software bb offline check the mail?

I have installed a phone recorder tool for my blackberry torch 9800 mobile. But the tool does not play the audio clearly. How can I record the audio clearly. Please give a solution.