I mentioned some time ago (on my main blog) that Sprint had a small cluster of islands in SL, but since then I've not tried to gain entry. However, while rummaging around I happened upon Sprint Center again, so I thought I'd give it a go. And sure enough, I found it was open. It's not what I'd call complete yet, but it looks like it is down to the finishing touches.
Interestingly the Sprint presence here is largely hispanic, and is seemingly themed around the staging of "Concierto Clandestino" in Second Life. To support this, there is an entrance way with bar/seating area, a gift shop (for the inevitable Tshirts) and a large auditorium - the "Sprint Center" - which is modelled on a RL equivalent currently under construction. In the entrance there is a countdown to the opening of the RL Sprint Center, in Kansas City - although it differs from that shown on the website by around 12 days.
As I said earlier, the build looks incomplete - there seem to be a number of rough edges - but the basics would appear to be in place. There are multiple Sprint Center islands (5 so far) and it would seem that the intention may be to clone the main island, so that it can accommodate a large crowd for launch. There is, as yet, no indication of when such a launch might be (or indeed, why the island has such a strong hispanic flavour).
The builders all belong to theSL group "NoDigital", which describes itself (using LSL scripting) as a design group, but this has revealed nothing to my (admittedly brief) Googling!Oh... just for completeness: Sprint is a global (US-based) telecoms company, described in wikipedia as "one of the largest telecommunications companies in the world. With 53.7 million subscribers, Sprint Nextel operates the third largest wireless telecommunications network in the United States (based on total wireless customers)."