I take it this is the part of the interview to which you refer??
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Just because it's easy now doesn't mean he's not excited — especially about certain parts, such as being able to give Rupert Grint a hard time when it's his turn at a kissing scene (see " 'Harry Potter' Casting Call Could Help Ron Weasley Find Perfect Shade Of Lavender"). "I'm going to be on set pointing at him every time. It's going to be funny," Radcliffe grinned mischievously. "And I'm looking forward to [the seventh movie] when he has to kiss Emma [Watson]!"
QUOTE
Of course, he may want to take it easy on them, since Radcliffe will have to kiss her too. "Presumably," he said. "I should get my evil twin for that scene!"
Remember when Ron was wearing the horcrux and seeing all sorts of strange things happening, including the bizarre scenario with Harry kissing Hermione...let me try to find the page so I can quote it exactly...ahh, here it is!
QUOTE
page 306/7 UK version....chapter title..The Silver Doe....Out of the locket's two windowa, out of the eyes, there bloomed, like two grotesque bubbles, the heads of Harry and Hermione, weirdly distorted.
and then on page 307....'your mother confessed,'sneered Riddle-Harry, while Riddle- Hermione jeered,'that she would have preferred me as a son, would be glad to exchange...'
'Who wouldn't prefer him, what woman would take you? You are nothing, nothing to him,' crooned Riddle-Hermione, and she stretched like a snake and entwined herself aroung Riddle-Harry, wrapping him in close embrace: their lips met.
Ofcourse technically it's not Harry and Hermione, but visually that's who we see!