pleaze consider this - Wifi shield circuit

Using Arduino Networking, Protocols, and Devices
1

to make the story short . i want to make the circuit of the arduino wifi or ethernet shield on a breaboard then i will port the whole thing to a printed circuit ... can i do it ? or can it be done ?

2

can i do it ?

Are you asking for permission?

3

i know it's open . but im asking if it's even possible and if the parts are available for breadboard

4

Your biggest problem with a breadboard is going to be the surface-mount components.
You may be able to find adapter boards, but the added space/expense may not be worthwhile.