Hi all, I'm new to this list, so let me introduce myself very shortly. I'm working at the Laboratory of Microbial Ecology and Technology and Ghent University. We're recently involved in some projects concerning microarrays. I'm mainly busy with 'quantification and management of microbial systems', and in this sense, I have interest in phylogenetic ID-arrays, to that's the main reason why I added myself to this list... I have 2 questions: 1/ Are there other people busy with phylogenetic ID-arrays (on e.g. environmental samples), processing of data etc.? 2/ At this moment, I'm trying out Xeotron arrays (CME - Michigan State University) for identification. I'm writing some packages for the data processing etc (which will be available I hope in an month); since Xeotron arrays are rather specific and phylogenetic ID-arrays require other processing, 'normal' methods (which we use for genomic arrays) fail. Anyway, I like the idea to standardize the way of data storage and handling. So, are there already any 'rules' or 'guidelines' about such standardization for data storage etc.? I just want 'my package' be compatible with other stuff in BioConductor... Kurt Sys.