Sony Ericsson P990 and W950 users will be pleased to hear that there will be another firmware update for their phones available shortly as mentioned in this SE Developer World Forum thread. The updates will be made available in August. Credit to Sony Ericsson for listening to their users in this matter.

Here's the official response:

“In response to recent feedback from users and as a result of additional internal testing, Sony Ericsson has determined to offer a further firmware update for the P990 and W950 Walkman® phone. This move illustrates Sony Ericsson’s ongoing commitment to its existing ‘smartphone’ customers and the company’s desire to be responsive to customer feedback in order to provide an optimal user experience.

The next firmware release for the P990 and W950 will be available from the Sony Ericsson Update Service from August 2007.”