But the biggest coup came with yesterday's announcement from Obama that Clinton will be despatched within two weeks.
"We want to seize what could be a historic opportunity for progress and make it clear that if Burma continues to travel down the road of democratic reform, it can forge a new relationship with the United States of America," said Obama, who said there had been "flickers" of progress.
"If Burma fails to move down the path of reform, it will continue to face sanctions and isolation. But if it seizes this moment, then reconciliation can prevail."
It is likely the US decision is motivated by several factors. Sanctions mean all but a handful of US companies are prevented from operating inside the country and energy companies would covet the opportunity to bid for oil and gas deals.
Washington is also concerned about countering the considerable influence over Burma of China, which has already established a series of energy agreements. Finally, it seems clear the US believes the purportedly civilian administration that came to power after a controversial election last year does represent something different.
Aung Din, a former political prisoner who now heads the US Campaign for Burma, said he had been surprised by Mr Obama's announcement.
But he added: "Since Aung San Suu Kyi agrees and welcomes the Secretary's visit, I support it as well. I just wish the Burmese regime will understand this serious, good-will gesture of the United States government and respond positively by releasing all remaining political prisoners and ending the armed conflict in ethnic minority areas before Mrs Clinton arrives."
Obama said he consulted Suu Kyi before making the decision and spoke with her by phone for 20 minutes.
"I spoke to Aung San Suu Kyi directly and confirmed that she supports American engagement to move this process forward," he said, speaking in Bali.
At the meeting of the NLD's central executive committee yesterday, Suu Kyi told members she wanted her party ready to stand in the polls later this year.
According to the Reuters news agency, she said: "In my opinion, I would like the party to re-register and to run in the by-elections in all the 48 constituencies."
- INDEPENDENT