I have been working very hard since December 10th on a novel algorithm for fragments assembly. I already registered a sourceforge open source project . I started with some of the ideas of Pevzner et al. 2001 , but I added several enhancements, and I modeled the problems with equations. My software is compatible with the amos specification and will be released on sourceforge upon acceptance in a journal. We are planning to submit our work to PNAS . We collected public data sets from the Short Read Archive to assess the performance of our software.