My long term vision
We (bioinformaticians and laboratory scientists) have agree on what data and annotations are essential to interpret the microarray experiments
We have agreed on common controls and standard normalisation procedures, and have understood how to compare data from different experiments
We have developed a flexible ontology for annotating microarray experiments and we are moving towards controlled vocabularies for sample description
We have agreed on a standard data exchange format
We have established well structured gene expression databases, laboratories are enthusiastically submitting their well annotated data (encouraged by journals), and we are building up systematic gene expression profiles