Major partners in Symbian have agreed to not allow Nokia to own over 50% of Symbian. A deal back in February to buy out Psion’s Symbian shares would have left Nokia with 63.3% of Symbian.

Siemens, Sony Ericsson and Panasonic all upped their investments to even out the ownership. Here’s the current rankings (after the Psion deal and today’s move). Prior ownership numbers follow in parentheses.

• Ericsson - 15.6 (17.5)
• Sony Ericsson - 13.1 (1.5)
• Nokia - 47.9 (32.2)
• Panasonic - 10.5 (7.9)
• Psionv - 0.0 (31.1)
• Samsung - 4.5 (5)
• Siemens - 8.4 (4.8)