The Manchester United defender was set to skipper his country at the finals, but a knee injury suffered in a training ground clash with team-mate Emile Heskey saw his dreams ended.
Wasps finished seventh in the Guinness Premiership table and were disappointing in the Heineken Cup, while Cipriani was also involved in a training ground bust-up with team-mate Josh Lewsey.
Beckham eventually left the training ground with former Manchester United team-mate Ruud van Nistelrooy and insisted he would watch the second half of England's friendly against Greece at Old Trafford - if he got home in time.
But Wales boss John Toshack is boosted by the news Gabbidon's Hammers team-mate Jack Collison is back in full training after recovering from a knee injury.
Many believe the catalyst for the rift between Ferguson and Van Nistelrooy was a reported training ground bust-up between the player and team-mate Cristiano Ronaldo.
"Finland is when it (the training) all starts again in earnest, " said Hamilton, whose Finnish team-mate Heikki Kovalainen will be testing again in Spain and Portugal this month after the camp in his home country.