These are some of the more recent droids that I have created.  Many of
them use the new 1x2 plate with a horizontal bar found in the new 
Millenuim Falcon set.  I've wanted Lego to make this very piece since
I started creating my first droids in 1996.  

Since 1996 I have endeavored to build droids that resemble minifigs,
but do not use actual minific parts, with the exception of minifig
gear.  I have developed many different designs, all with a useful 
purpose as described below. All my droids are classified with the 
prefix G, which stands for the generetion of droid followed by a 
number which orders them from earliest to latest.  Each generation of
droid is given a new number when it incorporates an advancement of
design unique from any previous droid.  Subgenerations, specified with
a decimal and another number indicate the development of a new droid 
that mostly resembles a previous generation, but is now more advanced.

Descriptions:

The G-1.3 is a newer version of my very first droid. It has advanced 
arms with a wide range of movement and new legs made with the new 
piece from the Millenium Falcon.  The backpack stores extra power.  
This is a common and easy drois to manufacture.  

The G-3.2 is an advancement of the G-3 and also has new arms and legs. 
They are very new and their popularity has not yet been determined.

The G-4 is the latest droid.  It uses the least amount of pieces.  It
also uses some of the rarer parts and is very rugged.  These droids 
are mostly used for the surface exploration of other worlds.  They are
also ideal for setting up habitats and colonies in preparation for
minifigs and can maintain these installations when there are no
minifigs.  Because of their size and design they can be adapted to
almost any environment or task.

The Gungan assasin droid was created for the sole purpose of 
exterminating the Gungan infestation.  Because he looks like a Gungan
they don't realize his intentions until it is too late.  

The last droid is simply a minifig version of "robot" from the old
Lost in Space series.  I think its pretty cool.