This article is in the ACM database
Rettig, M. (1994) Prototyping for Tiny Fingers. Communications of the ACM 37(4):21-27.
[http://portal.acm.org.ezproxy.cdu.edu.au/citation.cfm?doid=175276.175288]
Olsen, H. (2007) The dark side of prototyping. The Interaction Designer’s Coffee Break. Viewed 9 April, 2007 <http://www.guuui.com/issues/01_07.php>
Some of the most common pitfalls of prototyping are discussed. Make sure that the design reflected by the prototype is realizable within the project constraints. Keep fidelity at a minimum throughout the design phase. Involve colleagues in the design process.