According to CommanderROR who
has been in contact with Mr. Wrobel from German
eBook Media, who himself
apparently knows some guys from iRex has been in close contact with iRex, the delayed launch of the iLiad reader has been caused by some technical glitches involving the web store's
shopping basket feature (and not by a shortage in E Ink material as rumored earlier). Nevertheless iRex remains optimistic that the reader will launch in April.
As an interesting side note, Mr. Wrobel also mentions that he feels bitter about not receiving any information from iRex regarding the proprietary e-book format they are going to use.