There has been higher than usual volume on the Psivida shares...

There has been higher than usual volume on the Psivida shares listed on the DAX(German Stock exchange) last night and the night before. Spiked up intraday, but finished relatively flat.
The scientific update announcement (made a few weeks ago) suggests that in 2004 they are expecting "completion of manufacturing of the company's first product and first trial in man". I assume they are referring to the pSiOncology joint venture product which they say is "expected to be deemed a device by regulatory agencies, significantly reducing time to market".
Also in 2004 they are expecting revenue from licensing deals.
That may be keeping the interest up or maybe it is short term speculation of an imminent announcement.