At the moment Radiohead seem to be planning to have a quiet year as far as playing live goes.  They have only one date penned in at the moment, that being the Tibet Freedom Concert in Wasington DC on 13 June.  The concert will take place in the RFK Stadium and the band will appear on the the same bill as U2, REM and The Beastie Boys.
time.  Please note this is just a rumour.
fine.

There are also rumours that a band named 'On A Friday' are to play at Glastonbury this year.  Two years in a row.  Might be worth going.  Hope the sun shines this time.  Please note this is just a rumour.

Personally I hope that the band will keep their promise to play Belfast this year.  Botanic Gardens would be fine.