Will PygoWave and Shareflow give stiff competition to Google wave?

According to me these applications are just trying to cash in on Google waves anticipation that it has created for itself, and these tools just gives the Trailer sort of thing like What Google wave will look like, so i guess they would not pose such a great threat for Google wave on the whole, but one can be sure that it is getting hotter by the day and People want the Best that is Google wave and nothing less....But then Shareflow is something like one can't ignore about it and one that deserves more than a passing mention towards it. Shareflow by the looks seems almost everything Google Wave speaks about. It has almost everything to make communication move out of emails, even though it is essentially a paid product, but then the basic plan comes to everyone for free with 25MB storage and 5 flows though there is no cap on users.