The new iPad is about to overtake its aged predecessor in in device share just two months after its launch, according to recent data. The data from Localytics shows that the new iPad and the original iPad now each account for 20% of the total iPad market, while the iPad 2 accounts for the other 60%.

Perhaps not surprisingly, most of the new iPad’s growth has come at the expense of the original iPad, instead of the iPad 2. Within a week of the new iPad’s launch, it had claimed 14% of the total iPad market, while the iPad 2 had 62% and the original iPad had 24%. In the two monts since, the new iPad has taken a further 6% of the market. Of that 6%, 2% came at the expense of the iPad 2 (which dropped to 60%), and the remaining 4% came at the expense of the original iPad.

Though it certainly comes with its share of cool features – retina display and 4G LTE not least among them – the new iPad is not actually a major upgrade over its predecessor. Nevertheless, it has proven immensely popular, selling 3 million units in its first weekend. Given the overall similarities between the iPad 2 and new iPad, though, it is perhaps not surprising that much of the new iPad’s growth has come from those who were still hanging on to their original iPad from two years ago. At current rates, it shouldn’t be long at all before the new iPad takes the majority of its elder’s remaining device share. The big question is how long it will take the new iPad to make a significant dent in the share of the iPad 2.