Please see the todo section, that was what I'm looking for:
 Incremental search with / and ?
http://common-lisp.net/project/vial/darcs/extended-viper/vimlike.el
If you can find some implementation that does that please let me know.

Regards,
Maindoor.

--- On Wed, 8/12/09, Lennart Borgman <lennart.borgman@gmail.com> wrote:

From: Lennart Borgman <lennart.borgman@gmail.com>
Subject: Re: better search
To: "Maindoor" <sanjeevfiles@yahoo.com>
Cc: help-gnu-emacs@gnu.org
Date: Wednesday, August 12, 2009, 9:00 PM

On Wed, Aug 12, 2009 at 9:28 AM, Maindoor<sanjeevfiles@yahoo.com> wrote:
> Hi,
> Is it possible in the viper package to make the search incremental ?
> right now I have to press </> entire the "string" and press enter once
> and press <n> or <shift-n> to search forward and backward.
>
> Do we have a way where in I press </> and typing a string causes an
> incremental search. When I find the instance I press enter. and
> subsequent <n> or <shift-n> will search forward and backward.
>
> This looks like a very basic sane request. I am sure folks would have
> thought about this requirement. Is there a way out ?


Personally I just use the normal Emacs isearch, ie C-s. It works very
well even when you are using Viper.

And I use /  when I want to search vi style. I find it handy to have both.

You can of course rebind / in the vi mode keymap if you want too. Look
in viper-keym.el for the name of the keymaps.