Do we need security software for tablets?

Clarifications

This are the answers, in the sequence, to the questions you ask:
Yes.
There are chances.
But you cannot install same as your desktop.
There are different available for Tablets.
Some are even free.

We use CompuTrace by Absolute Software to protect computers and Smat/PDA/Phone/Tablet's.

Depending on the number of devices and the level of protection, it can be as low as $30 (USD) per year (3 year minimum).

A few years ago during a trial and proof of concept we had a break in at the office and two laptops were stolen. We initiated a continual remote wipe of the laptops. We managed to trace and get one laptop back, the other would surface from time to time (a sort of GPS tracking that CompuTrace employs) but we were never able to retrieve it. Eventually we didn't hear from it at all.

After that experience I had no problem in getting the expense into the budget.

The CompuTrace client also gives you other management tools. The most useful was the software inventory. At first it's pretty overwhelming but you can write reports to help filter out the noise. :)

You can purchase online but I worked with our CDW sales person who was able to get a better price.

iOS is safer than Android but only as safe as Apple/App store oversight can be. You can hardly get apps on to a device if you are a registered developer, much less through a backdoor malware method. :)

Android based systems are another matter and I would definitely think security software would be a good thing on those devices. The fortunate thing about Android is that the ecosphere isn't homogenous thus limiting the spread of malware across platforms. If anyone ever does break iOS certification, Apple users are well and truly .... compromised.

Security softwares are tablets are very must , though it may be a next generation cloud implement even tablets need antivirus softwares.

MDM is what you are looking for and need. This is a server based solution which can be hosted on-site or off-site (cloud). MDM allows you to enforcy policies, control and push applications, and securely distribute content to mobile devices. This can be used for managing BYOD and Corporate liable devices. Providing Jailbreak/Rooting detection, white/black listing applications, encyption and password policies, and remote capabilities like lock, password reset, selective wipe, and factory reset. Top companies: AirWatch, MobileIron, and MaaS360. Take a look at the 2012 Gartner MDM report http://www.gartner.com/technology/reprints.do?id=1-1AKMU7L&ct=120518&st=sb

That sounds like overkill. I currently use avast which provides remote wipe, tracking, and you can rename it to whatever you want to hide that it is installed. It will also take a remote picture through the front camera to try to catch the theif. It is free. AVG also offers a free solution for mobile devices. BTW I use android and love it!