Regarding your question, if it's a flower type icon this is the photo slide show icon to show off all your photos. The only way I believe to get rid of it is to set up a pass code for your iPad, but then you may not want that either. Although there is another way to be rid of it but it's through Jailbreaking your iPad first.
The IPad Forum is a community of members from all walks of life and from all over the world coming together to share our experiences and to help each other learn about this wonderful piece of technology the Ipad. There is a wealth of information already here in the many threads we have so doing some searches will answer most of the questions you have. If then you cannot find the answer you are seeking then by all means post your question. There are many friendly and informed members here only too willing to help you.