I hope it is true, this sounds like a nice upgrade.
This presumed leak, coupled with a feature list that surfaced a short while ago, makes the upcoming update a certainty, although Sony declined to comment on the matter. Here are the presumed improvements that the next update will bring:
Voice Messaging is now available as an alternative to text after selecting a user on the friends list. Voice message recordings are capped at 30 seconds.
Home Integration: Saved Playstation Home avatar photos can be selected as photo ID for Gamer Card/Friends List.
Trophy number and Gamer Level are listed under Friend names for quick reference.
Gamer Card & Trophies:
Gamer Card layout has been changed to more closely resemble the Playstation Store aesthetic.
Past Trophy information can be viewed in detail by selecting "Recent Trophy History" option.
Newly acquired trophies auto-sync in the background
Server infrastructure for Trophies has been optimized. Resulting in faster retrieval time for Gamer Card and Trophy information.
Loading time for In-Game XMB has been drastically reduced, resulting in a more seamless in-game experience.
"Theme settings" options while in-game is now available, allowing custom themes to be applied to the In-Game XMB.
Internet Browser can now be accessed while in-game.
Voice messaging and voice chat options can be used while in-game.
Options that cannot be used in the XMB during game sessions are grayed out (but still selectable) to eliminate user accessibility confusion.
Other slight UI tweaks and enhancements.
All in all, let's not forget that this is just a rumor and PS3 owners will still have to settle with the current firmware on their console for a few weeks.