Just off the [Rim] Press Release wire : RIM Announces Free BlackBerry Enterprise Server Express Software for IBM Lotus Domino
The free software products like that are not released very often so download it and used while it’s available. I hope it’s not the pre-Christmas promotion conducted by RIM and IBM to compete with Microsoft and RIM and IBM will support it for a very long time.
On my opinion, the more free good quality products can be used with IBM Lotus Domino software, the merrier. And I hope eventually IBM will release free Express version of Lotus Notes mail client.